Articulator Zeroing on Condylar Guidance Values: A Comparative Study of Hanau and Artex Systems

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Semi-adjustable articulators are commonly used for this purpose, and zeroing is a preparatory step intended to standardize articulator settings. However, its influence on condylar guidance values remains unclear. Therefore the purpose of the study was to evaluate the effect of zeroing on condylar guidance values and compare measurements obtained from Hanau and Artex articulators. Methods Thirty dentate participants (20–30 years) were included. Maxillary casts were mounted using facebow transfer, and mandibular casts were mounted in maximum intercuspation. Four groups were evaluated: Hanau with zeroing (H0), Hanau without zeroing (H1), Artex with zeroing (A0), and Artex without zeroing (A1). Condylar guidance was recorded using protrusive interocclusal records. Data were analyzed using statistical tests with significance set at p < 0.05. Results Significant differences were found between Hanau and Artex articulators under both zeroing and non-zeroing conditions (p 0.05). Conclusions The difference in the condylar guidance angle between zeroing and non-zeroing of the articulator is minimal and not statistically significant. However, this small variation could potentially impact the accuracy and precision of prosthesis fabrication. Additionally, there is an observable difference in the condylar guidance angle between the Hanau and Artex articulators, when comparing measurements with and without zeroing. 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F1000Research 2026, 15 :580 ( https://doi.org/10.12688/f1000research.179624.1 ) NOTE: If applicable, it is important to ensure the information in square brackets after the title is included in all citations of this article. Close Copy Citation Details Export Export Citation Sciwheel EndNote Ref. Manager Bibtex ProCite Sente EXPORT Select a format first Track Share ▬ ✚ Brief Report Articulator Zeroing on Condylar Guidance Values: A Comparative Study of Hanau and Artex Systems [version 1; peer review: 2 approved] Previously titled: "IMPACT OF ZEROING OF ARTICULATORS ON CONDYLAR GUIDANCE ANGLE" Mallikarjuna Ragher https://orcid.org/0009-0001-3233-975X 1 , Sanath Kumar Shetty https://orcid.org/0009-0004-5552-2487 1 , Vidya Bhat S 1 , [...] Rajesh Shetty https://orcid.org/0000-0002-2538-2012 1 , Savitha Dandekeri 1 , Sanha Razdan 1 , Sunaina M Afnan 1 Mallikarjuna Ragher https://orcid.org/0009-0001-3233-975X 1 , Sanath Kumar Shetty https://orcid.org/0009-0004-5552-2487 1 , [...] Vidya Bhat S 1 , Rajesh Shetty https://orcid.org/0000-0002-2538-2012 1 , Savitha Dandekeri 1 , Sanha Razdan 1 , Sunaina M Afnan 1 PUBLISHED 19 Apr 2026 Author details Author details 1 Prosthodontics, Yenepoya (Deemed to be University) Dental College, Mangaluru, Karnataka, India Mallikarjuna Ragher Roles: Investigation, Methodology, Project Administration Sanath Kumar Shetty Roles: Conceptualization, Investigation, Methodology Vidya Bhat S Roles: Supervision, Validation Rajesh Shetty Roles: Supervision, Writing – Original Draft Preparation Savitha Dandekeri Roles: Writing – Original Draft Preparation Sanha Razdan Roles: Investigation, Writing – Original Draft Preparation Sunaina M Afnan Roles: Writing – Original Draft Preparation, Writing – Review & Editing OPEN PEER REVIEW DETAILS REVIEWER STATUS Abstract Purpose Accurate replication of mandibular movements is essential for successful prosthodontic rehabilitation. Semi-adjustable articulators are commonly used for this purpose, and zeroing is a preparatory step intended to standardize articulator settings. However, its influence on condylar guidance values remains unclear. Therefore the purpose of the study was to evaluate the effect of zeroing on condylar guidance values and compare measurements obtained from Hanau and Artex articulators. Methods Thirty dentate participants (20–30 years) were included. Maxillary casts were mounted using facebow transfer, and mandibular casts were mounted in maximum intercuspation. Four groups were evaluated: Hanau with zeroing (H0), Hanau without zeroing (H1), Artex with zeroing (A0), and Artex without zeroing (A1). Condylar guidance was recorded using protrusive interocclusal records. Data were analyzed using statistical tests with significance set at p < 0.05. Results Significant differences were found between Hanau and Artex articulators under both zeroing and non-zeroing conditions (p 0.05). Conclusions The difference in the condylar guidance angle between zeroing and non-zeroing of the articulator is minimal and not statistically significant. However, this small variation could potentially impact the accuracy and precision of prosthesis fabrication. Additionally, there is an observable difference in the condylar guidance angle between the Hanau and Artex articulators, when comparing measurements with and without zeroing. READ ALL READ LESS Keywords Condylar guidance, Facebow Transfer, Interocclusal record, Semi-adjustable articulator, Zeroing. Corresponding Author(s) Sanath Kumar Shetty ( [email protected] ) Close Corresponding author: Sanath Kumar Shetty Competing interests: No competing interests were disclosed. Grant information: The author(s) declared that no grants were involved in supporting this work. Copyright: © 2026 Ragher M et al . This is an open access article distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. How to cite: Ragher M, Kumar Shetty S, Bhat S V et al. Articulator Zeroing on Condylar Guidance Values: A Comparative Study of Hanau and Artex Systems [version 1; peer review: 2 approved] . F1000Research 2026, 15 :580 ( https://doi.org/10.12688/f1000research.179624.1 ) First published: 19 Apr 2026, 15 :580 ( https://doi.org/10.12688/f1000research.179624.1 ) Latest published: 19 Apr 2026, 15 :580 ( https://doi.org/10.12688/f1000research.179624.1 ) 1. Introduction The primary goal of every prosthodontist is to create dental restorations that seamlessly accommodates a patient’s natural functional movements, thereby preventing any disruptions or disharmony within the stomatognathic system. Dental articulators play a pivotal role in accurately replicating these mandibular movements and facilitating the restoration of proper occlusion. Programming semi-adjustable articulators involves adjusting two critical components: horizontal and lateral condylar guidance which are obtained through interocclusal records. The precision and reliability of these programming methods significantly influence the harmony of occlusion. 1 The popular articulators feature condylar elements that operate within a slot-type guidance mechanism. These articulators allow for adjustment of horizontal condylar guidance ranging from −40 to +80 degrees, and lateral guidance side shift adjustments ranging from 0 to 20 degrees. 2 Before mounting the maxillary cast, all adjustments on the articulator are manually locked without exerting excessive force or mechanical aids. The preparatory step, known as “zeroing” or “articulator preparation,” involves setting specific values for the condylar angle, Bennet angle, and incisal guides as recommended by the manufacturer. 1.1 Manufacturer guidelines for Zeroing For Hanau Wide Vue articulators, protrusive condylar guidance is set at 30 degrees, lateral condylar guidance at 30 degrees, and incisal guides at zero degrees. The centric locks are tightened to restrict the instrument to opening and closing movements only. For Artex articulators, protrusive condylar guidance is set at 30 degrees, lateral condylar posts at 15 degrees, and incisal guides at zero degrees. Similarly, the centric locks are tightened to limit the instrument to opening and closing movements only. Despite its routine use, the clinical significance of zeroing remains debated. Therefore, this study aimed to evaluate the impact of zeroing on condylar guidance values and compare results between Hanau and Artex articulator system. 2. Methodology Institutional ethical approval was obtained from the Yenepoya Ethics Committee-2, Yenepoya (Deemed to be University) (YEC2/564) before the study commenced. Volunteers were enlisted following a comprehensive explanation of the study protocol, and written informed consent was obtained from each participant. Sample size of 30 was determined based on a significance level of 5% and a standard deviation of 5.99, with a margin of error of 3%. 5 Thirty participants aged between 20 and 30 years, with full set of teeth, were included in the study. Exclusion criteria encompassed individuals with periodontally compromised teeth, grossly attrited or abraded teeth, with fixed or removable partial dentures, or missing teeth. Four sets of maxillary and mandibular impressions were obtained for each of the 30 participants. These impressions were poured in Type III dental stone to create casts and randomly allotted to four groups: Group H0: Hanau with zeroing, Group H1: Hanau non-zeroing, Group A0: Artex zeroing, Group A1: Artex non-zeroing. On the Hanau Wide-Vue articulator, the maxillary casts were mounted using Hanau spring bow with zeroing and non-zeroing settings for each group. In the Hanau zeroing group, the condylar guidance angle was set to 30 degrees, the Bennet angle was set to 30 degrees, and the incisal guidance was set at 0 degrees (zeroing) ( Figure 1 ). For the Hanau non-zeroing group, the condylar guidance angle was set to 0 degrees, the Bennet angle was set to 0 degrees, and the incisal guidance was also set at 0 degrees ( Figure 2 ). Figure 1. Condylar guidance after zeroing in Hanau. Figure 2. Condylar guidance without zeroing in Hanau. The same procedure was repeated for Artex articulators utilizing the Slidematic Face bow. In the Artex zeroing group, the articulator was set with a condylar guidance angle set to 30 degrees, a Bennet angle set to 15 degrees, and incisal guidance set at 0 degrees ( Figure 3 ). Conversely, the Artex non-zeroing group’s articulator had values of 0 degrees for the condylar guidance angle, 0 degrees for the Bennet angle, and 0 degrees for incisal guidance ( Figure 4 ). Figure 3. Condylar guidance after zeroing in Artex. Figure 4. Condylar guidance without zeroing in Artex. All records for each participant were meticulously completed on the same day by the same operator. The mandibular cast was mounted utilizing the patient’s maximum intercuspation record for all articulators. The protrusive interocclusal record was obtained with Aluwax, and these records were employed to program the articulators. The protrusive relation was carefully evaluated and reconfirmed before establishing the sagittal condylar inclinations, with locknuts being securely tightened by hand pressure. All articulators were programmed by a single operator to ensure consistency and accuracy. Subsequently, the resulting condylar guidance values obtained from each group were meticulously recorded and subjected to statistical analysis. (Supplementary table 1 and 2 – in Data availability repository). 3. Results Data analysis was conducted using SPSS version 27.0 statistical software. The obtained p-values from t-tests indicate significant differences in mean values between the H0 and A0 groups, as well as between the H1 and A1 groups (p < 0.05). These findings suggest distinct mean values between the Hanau (H) and Artex (A) articulators when set at zeroing (0) and non-zeroing (1) positions, respectively. Conversely, comparisons between the H0 and H1 groups, and between the A0 and A1 groups showed p-values greater than 0.05, indicating no statistically significant differences in mean values within each articulator type across zeroing and non-zeroing settings ( Table 1 and Table 2 ). Table 1. Comparison of mean condylar guidance values between groups (zeroing vs. non-zeroing and between articulators). G Mean Std. Deviation Std. Error Mean H0A0 H0 35.83 6.309 1.152 A0 39.83 5.645 1.031 H1A1 H1 35.33 5.713 1.043 A1 38.50 5.438 0.993 H H0 35.83 6.309 1.152 H1 35.33 5.713 1.043 A A0 39.83 5.645 1.031 A1 38.50 5.438 0.993 Table 2. Independent samples t-test comparing condylar guidance values between articulator groups. t-test for Equality of Means T df p value Mean Difference Std. Error Difference 95% Confidence Interval of the Difference Lower Upper H0A0 −2.588 58 .012 −4.000 1.546 −7.094 −0.906 H1A1 −2.199 58 .032 −3.167 1.440 −6.049 −0.284 H0H1 .322 58 .749 0.500 1.554 −2.611 3.611 A0A1 .932 58 .355 1.333 1.431 −1.531 4.198 4. Discussion The complexities of mandibular movements necessitate careful consideration when utilizing articulators. Over time, efforts have been made to accurately replicate these movements, resulting in increasingly intricate articulator designs. Semi-adjustable articulators are calibrated using individual static records, but their reliability has often been questioned as they fail to simulate the patient’s temporomandibular joint (TMJ) anatomy and rely on average condylar settings. 3 , 4 The ability of dentists to consistently zero the instrument before mounting casts is crucial for the proper use of semi-adjustable articulators. This process, known as “zeroing,” involves standardizing the articulator to a consistent starting position. To achieve accurate zeroing, specific criteria must be met, including ensuring that the incisal pin strikes the incisal table centrally in both the antero-posterior and right-to-left directions. Additionally, when the centric locks are engaged, there should be no lateral movement between the upper and lower components. 5 Zeroing the articulator positions the condyle at its most anterior superior position within the glenoid fossa, thereby reproducing the most precise guidance at this point. 6 According to Hanau manufacturers, zeroing is essential to prevent the articulator from producing flat results that lack the characteristic angulation of a patient’s jaw movement. Typically, most patients’ jaw movements have an average angle of 30 degree. Failure to account for this angulation may result in inadequate contact, particularly with larger arches. Our study results showed that changing the articulator settings for mounting affects the measured values of condylar guidance. Although we noted a noticeable difference in values between zeroing and non-zeroing positions, the lack of statistical significance suggests that these differences might not be considered meaningful in a statistical sense ( Table 2 ). However, the fact that there are noticeable differences implies that these adjustments could still have practical implications, particularly in prosthesis fabrication where precise measurements are crucial. Even though the statistical test did not show significance, the consistent differences observed could lead to errors if not properly accounted for during prosthesis fabrication. The statistical difference between the Hanau and Artex articulators within both the zeroing and non-zeroing groups may be linked to differences in how each articulator defines or utilizes the anterior reference point. Articulators rely on specific reference points to simulate jaw movements and occlusal relationships accurately. These reference points, especially the anterior reference point, play a crucial role in determining the overall articulator settings and consequently affect measurements such as condylar guidance values. The Hanau and Artex articulators may have distinct methods or positions for establishing the anterior reference point. This variation can lead to differences in how condylar guidance values are interpreted and measured between the two articulator types, potentially resulting in statistically significant discrepancies as observed in your study. Therefore, when comparing data between these articulators, it’s essential to consider not only the settings like zeroing or non-zeroing but also how each articulator system defines and utilizes critical reference points such as the anterior reference point. These differences can significantly impact the outcomes and conclusions drawn from studies involving dental articulation and occlusal analysis. This understanding could help in refining protocols or methodologies to minimize errors and ensure more accurate results in clinical practice. 5. Conclusion Based on our findings, we conclude that adjusting articulator settings, whether zeroing or non-zeroing, despite not achieving statistical significance, shows practical implications due to observable differences. Additionally, there is an observable difference in the condylar guidance angle between the Hanau and Artex articulators, when comparing measurements with and without zeroing. In prosthesis fabrication, where precision is paramount, these adjustments have the potential to introduce errors. Therefore, despite the statistical tests not confirming significance, the consistent variations observed necessitate further investigation. It is crucial to thoroughly understand these effects to refine protocols aimed at ensuring precise clinical outcomes. Data availability IMPACT OF ZEROING OF ARTICULATORS ON CONDYLAR GUIDANCE ANGLE [Data set]. Zenodo. https://doi.org/10.5281/zenodo.19247183 7 The repository contains- supplementary tables, informed consent form and participant information sheet. Data are available under the terms of the Creative Commons Attribution 4.0 International license (CC-BY 4.0). References 1. Bhawsar S, Marathe A, Ansari S: Evaluation of Hanau’s formula in determination of lateral condylar guidance: A clinical research study. J Indian Prosthodont Soc. 2015; 15 (4): 326–330. PubMed Abstract | Publisher Full Text 2. Javid NS, Porter MR: The importance of the Hanau formula in construction of complete dentures. J. Prosthet. Dent. 1975 Oct; 34 (4): 397–404. PubMed Abstract | Publisher Full Text 3. Tanaka H, Beu RA: A new semiadjustable articulator. Part I. Concept behind the new articulator. J. Prosthet. Dent. 1975 Jan; 33 (1): 10–16. Publisher Full Text 4. Shanahan TEJ, Leff A: Mandibular and articulator movements. J. Prosthet. Dent. 1962 Mar; 12 (2): 292–297. Publisher Full Text 5. Nowlin TP, Bailey JO, Taubert TR: Accuracy of zeroing the articulator. J. Prosthet. Dent. 1987; 57 (5): 647–649. Publisher Full Text 6. Rangarajan V, Padmanabhan TV: Textbook of Prosthodontics-E Book. Elsevier Health Sciences; 2017 Jul 18. 7. Ragher M, Shetty SK, Bhat V, et al. : IMPACT OF ZEROING OF ARTICULATORS ON CONDYLAR GUIDANCE ANGLE. [Data set]. Zenodo. 2026. Publisher Full Text Comments on this article Comments (0) Version 1 VERSION 1 PUBLISHED 19 Apr 2026 ADD YOUR COMMENT Comment Author details Author details 1 Prosthodontics, Yenepoya (Deemed to be University) Dental College, Mangaluru, Karnataka, India Mallikarjuna Ragher Roles: Investigation, Methodology, Project Administration Sanath Kumar Shetty Roles: Conceptualization, Investigation, Methodology Vidya Bhat S Roles: Supervision, Validation Rajesh Shetty Roles: Supervision, Writing – Original Draft Preparation Savitha Dandekeri Roles: Writing – Original Draft Preparation Sanha Razdan Roles: Investigation, Writing – Original Draft Preparation Sunaina M Afnan Roles: Writing – Original Draft Preparation, Writing – Review & Editing Competing interests No competing interests were disclosed. Grant information The author(s) declared that no grants were involved in supporting this work. Article Versions (1) version 1 Published: 19 Apr 2026, 15:580 https://doi.org/10.12688/f1000research.179624.1 Copyright © 2026 Ragher M et al . This is an open access article distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Download Export To Sciwheel Bibtex EndNote ProCite Ref. Manager (RIS) Sente metrics Views Downloads F1000Research - - PubMed Central info_outline Data from PMC are received and updated monthly. - - Citations open_in_new 0 open_in_new 0 open_in_new SEE MORE DETAILS CITE how to cite this article Ragher M, Kumar Shetty S, Bhat S V et al. Articulator Zeroing on Condylar Guidance Values: A Comparative Study of Hanau and Artex Systems [version 1; peer review: 2 approved] . F1000Research 2026, 15 :580 ( https://doi.org/10.12688/f1000research.179624.1 ) NOTE: If applicable, it is important to ensure the information in square brackets after the title is included in all citations of this article. COPY CITATION DETAILS track receive updates on this article Track an article to receive email alerts on any updates to this article. TRACK THIS ARTICLE Share Open Peer Review Current Reviewer Status: ? Key to Reviewer Statuses VIEW HIDE Approved The paper is scientifically sound in its current form and only minor, if any, improvements are suggested Approved with reservations A number of small changes, sometimes more significant revisions are required to address specific details and improve the papers academic merit. Not approved Fundamental flaws in the paper seriously undermine the findings and conclusions Version 1 VERSION 1 PUBLISHED 19 Apr 2026 Views 0 Cite How to cite this report: Goyal MK. Reviewer Report For: Articulator Zeroing on Condylar Guidance Values: A Comparative Study of Hanau and Artex Systems [version 1; peer review: 2 approved] . F1000Research 2026, 15 :580 ( https://doi.org/10.5256/f1000research.198156.r478354 ) The direct URL for this report is: https://f1000research.com/articles/15-580/v1#referee-response-478354 NOTE: it is important to ensure the information in square brackets after the title is included in this citation. Close Copy Citation Details Reviewer Report 13 May 2026 Mukesh Kumar Goyal , PROSTHODONTICS, Inderprastha Dental College & Hospital, Ghaziabad, Uttar Pradesh, India Approved VIEWS 0 https://doi.org/10.5256/f1000research.198156.r478354 Dear Authors, Same study has been cited as reference no. 7 by same authors. Topic selected is very controversial in the literature and in practical application. It is a great effort to overcome by this type of study. ... Continue reading READ ALL Dear Authors, Same study has been cited as reference no. 7 by same authors. Topic selected is very controversial in the literature and in practical application. It is a great effort to overcome by this type of study. This study is definitely helpful to overcome the controversy in the application of articulators whether it needs zeroing or not. 1. Key word "Zeroing" need to modify as "Zeroing of Articulators" 2. In the abstract need to mention use of type of Inter-occlusal records. 3. In introduction " Therefore, this study aimed to evaluate the impact of zeroing on condylar guidance values and compare results between Hanau and Artex articulator system" add zeroing of articulators and compare values of horizontal condylar guidance between ..... 4. How the Sample size was decided. what statistical analysis was performed to calculate sample size? 5. Inclusion and Exclusion criteria are incomplete. Need to mention about TMJ disorders, neurological Disorders etc. 6. With which material initial impressions were made .. not mentioned and why four sets.. it could have been done with 2 sets. 7. Need to mention which company or brand Type III stone was used? 8. In Figure 1 & 2 do not show maximum intercuspation. How did you manage that occlusal separation? 9. Now a days More accurate and advanced materials are available for interocclusal records which are rigid enough to duplicate CG,and does not get distorted. Why have you not used elastomeric interocclusal record materials? 10. in the result part mean values need to be mentioned for each group in the text. 11. As comparing two articulators, results are highly significant and variations exist. There could have been some standardization to which both articulators can be compared, and conclusion can be made which articulator is more accurate and closer to actual reading of patient. 12. No recent references have been added. Only reference no. 7 is of 2026 .. which looks same study and same authors Is the work clearly and accurately presented and does it cite the current literature? No Is the study design appropriate and is the work technically sound? Yes Are sufficient details of methods and analysis provided to allow replication by others? Yes If applicable, is the statistical analysis and its interpretation appropriate? I cannot comment. A qualified statistician is required. Are all the source data underlying the results available to ensure full reproducibility? Yes Are the conclusions drawn adequately supported by the results? Yes Competing Interests: No competing interests were disclosed. Reviewer Expertise: PROSTHODONTICS I confirm that I have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard. Close READ LESS CITE CITE HOW TO CITE THIS REPORT Goyal MK. Reviewer Report For: Articulator Zeroing on Condylar Guidance Values: A Comparative Study of Hanau and Artex Systems [version 1; peer review: 2 approved] . F1000Research 2026, 15 :580 ( https://doi.org/10.5256/f1000research.198156.r478354 ) The direct URL for this report is: https://f1000research.com/articles/15-580/v1#referee-response-478354 NOTE: it is important to ensure the information in square brackets after the title is included in all citations of this article. COPY CITATION DETAILS Report a concern Respond or Comment COMMENT ON THIS REPORT Views 0 Cite How to cite this report: Sethuraman R. Reviewer Report For: Articulator Zeroing on Condylar Guidance Values: A Comparative Study of Hanau and Artex Systems [version 1; peer review: 2 approved] . F1000Research 2026, 15 :580 ( https://doi.org/10.5256/f1000research.198156.r478358 ) The direct URL for this report is: https://f1000research.com/articles/15-580/v1#referee-response-478358 NOTE: it is important to ensure the information in square brackets after the title is included in this citation. Close Copy Citation Details Reviewer Report 28 Apr 2026 Rajesh Sethuraman , K M Shah Dental College and Hospital, Sumandeep Vidyapeeth, Vadodara, Gujarat, India Approved VIEWS 0 https://doi.org/10.5256/f1000research.198156.r478358 The study focuses on a concept that has less to nil literature available. Articulator setting have always been followed as suggested by the manufacturer. However, the evidence to support these zeroing guidelines does not exist. The aim of the ... Continue reading READ ALL The study focuses on a concept that has less to nil literature available. Articulator setting have always been followed as suggested by the manufacturer. However, the evidence to support these zeroing guidelines does not exist. The aim of the study was to evaluate the effect of articulator zeroing on values of saggital condylar inclination. The results therefore could be extrapolated only to Protrusive angulation. Study focus could also be on Lateral condylar inclination and evaluation if the inclination values are different to those obtained by radiographic means. The sample size calculations were probably made from the article by [Nowlin T, Bailey J, Taubert Accuracy of zeroing the articulator. The Journal of Prosthetic Dentistry, 57, 647-649.] Though this reference study was on zeroing, I would still advise the current study as a pilot observation and to expand it further with a robust sample size and gold standard comparator. The methodology and statistical analysis used in the study seem adequate and justifiable. In the dearth of similar studies, the discussion can only focus on the current study. Clinically significance could be explained with literature established values that can add more value to the results obtained. Is the work clearly and accurately presented and does it cite the current literature? Yes Is the study design appropriate and is the work technically sound? Yes Are sufficient details of methods and analysis provided to allow replication by others? Yes If applicable, is the statistical analysis and its interpretation appropriate? Yes Are all the source data underlying the results available to ensure full reproducibility? Yes Are the conclusions drawn adequately supported by the results? Yes Competing Interests: No competing interests were disclosed. Reviewer Expertise: Removable Prosthodontics, Fixed Prosthodontics, Dental Material Sciences, Implant Prosthodontics, Maxillofacial Prosthodontics, Digital Prosthodontics. I confirm that I have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard. Close READ LESS CITE CITE HOW TO CITE THIS REPORT Sethuraman R. Reviewer Report For: Articulator Zeroing on Condylar Guidance Values: A Comparative Study of Hanau and Artex Systems [version 1; peer review: 2 approved] . F1000Research 2026, 15 :580 ( https://doi.org/10.5256/f1000research.198156.r478358 ) The direct URL for this report is: https://f1000research.com/articles/15-580/v1#referee-response-478358 NOTE: it is important to ensure the information in square brackets after the title is included in all citations of this article. COPY CITATION DETAILS Report a concern Respond or Comment COMMENT ON THIS REPORT Comments on this article Comments (0) Version 1 VERSION 1 PUBLISHED 19 Apr 2026 ADD YOUR COMMENT Comment keyboard_arrow_left keyboard_arrow_right Open Peer Review Reviewer Status info_outline Alongside their report, reviewers assign a status to the article: Approved The paper is scientifically sound in its current form and only minor, if any, improvements are suggested Approved with reservations A number of small changes, sometimes more significant revisions are required to address specific details and improve the papers academic merit. Not approved Fundamental flaws in the paper seriously undermine the findings and conclusions Reviewer Reports Invited Reviewers 1 2 Version 1 19 Apr 26 read read Rajesh Sethuraman , K M Shah Dental College and Hospital, Sumandeep Vidyapeeth, Vadodara, India Mukesh Kumar Goyal , Inderprastha Dental College & Hospital, Ghaziabad, India Comments on this article All Comments (0) Add a comment Sign up for content alerts Sign Up You are now signed up to receive this alert Browse by related subjects keyboard_arrow_left Back to all reports Reviewer Report 0 Views copyright © 2026 Goyal M. This is an open access peer review report distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 13 May 2026 | for Version 1 Mukesh Kumar Goyal , PROSTHODONTICS, Inderprastha Dental College & Hospital, Ghaziabad, Uttar Pradesh, India 0 Views copyright © 2026 Goyal M. This is an open access peer review report distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. format_quote Cite this report speaker_notes Responses (0) Approved info_outline Alongside their report, reviewers assign a status to the article: Approved The paper is scientifically sound in its current form and only minor, if any, improvements are suggested Approved with reservations A number of small changes, sometimes more significant revisions are required to address specific details and improve the papers academic merit. Not approved Fundamental flaws in the paper seriously undermine the findings and conclusions Dear Authors, Same study has been cited as reference no. 7 by same authors. Topic selected is very controversial in the literature and in practical application. It is a great effort to overcome by this type of study. This study is definitely helpful to overcome the controversy in the application of articulators whether it needs zeroing or not. 1. Key word "Zeroing" need to modify as "Zeroing of Articulators" 2. In the abstract need to mention use of type of Inter-occlusal records. 3. In introduction " Therefore, this study aimed to evaluate the impact of zeroing on condylar guidance values and compare results between Hanau and Artex articulator system" add zeroing of articulators and compare values of horizontal condylar guidance between ..... 4. How the Sample size was decided. what statistical analysis was performed to calculate sample size? 5. Inclusion and Exclusion criteria are incomplete. Need to mention about TMJ disorders, neurological Disorders etc. 6. With which material initial impressions were made .. not mentioned and why four sets.. it could have been done with 2 sets. 7. Need to mention which company or brand Type III stone was used? 8. In Figure 1 & 2 do not show maximum intercuspation. How did you manage that occlusal separation? 9. Now a days More accurate and advanced materials are available for interocclusal records which are rigid enough to duplicate CG,and does not get distorted. Why have you not used elastomeric interocclusal record materials? 10. in the result part mean values need to be mentioned for each group in the text. 11. As comparing two articulators, results are highly significant and variations exist. There could have been some standardization to which both articulators can be compared, and conclusion can be made which articulator is more accurate and closer to actual reading of patient. 12. No recent references have been added. Only reference no. 7 is of 2026 .. which looks same study and same authors Is the work clearly and accurately presented and does it cite the current literature? No Is the study design appropriate and is the work technically sound? Yes Are sufficient details of methods and analysis provided to allow replication by others? Yes If applicable, is the statistical analysis and its interpretation appropriate? I cannot comment. A qualified statistician is required. Are all the source data underlying the results available to ensure full reproducibility? Yes Are the conclusions drawn adequately supported by the results? Yes Competing Interests No competing interests were disclosed. Reviewer Expertise PROSTHODONTICS I confirm that I have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard. reply Respond to this report Responses (0) Goyal MK. Peer Review Report For: Articulator Zeroing on Condylar Guidance Values: A Comparative Study of Hanau and Artex Systems [version 1; peer review: 2 approved] . F1000Research 2026, 15 :580 ( https://doi.org/10.5256/f1000research.198156.r478354) NOTE: it is important to ensure the information in square brackets after the title is included in this citation. The direct URL for this report is: https://f1000research.com/articles/15-580/v1#referee-response-478354 keyboard_arrow_left Back to all reports Reviewer Report 0 Views copyright © 2026 Sethuraman R. This is an open access peer review report distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 28 Apr 2026 | for Version 1 Rajesh Sethuraman , K M Shah Dental College and Hospital, Sumandeep Vidyapeeth, Vadodara, Gujarat, India 0 Views copyright © 2026 Sethuraman R. This is an open access peer review report distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. format_quote Cite this report speaker_notes Responses (0) Approved info_outline Alongside their report, reviewers assign a status to the article: Approved The paper is scientifically sound in its current form and only minor, if any, improvements are suggested Approved with reservations A number of small changes, sometimes more significant revisions are required to address specific details and improve the papers academic merit. Not approved Fundamental flaws in the paper seriously undermine the findings and conclusions The study focuses on a concept that has less to nil literature available. Articulator setting have always been followed as suggested by the manufacturer. However, the evidence to support these zeroing guidelines does not exist. The aim of the study was to evaluate the effect of articulator zeroing on values of saggital condylar inclination. The results therefore could be extrapolated only to Protrusive angulation. Study focus could also be on Lateral condylar inclination and evaluation if the inclination values are different to those obtained by radiographic means. The sample size calculations were probably made from the article by [Nowlin T, Bailey J, Taubert Accuracy of zeroing the articulator. The Journal of Prosthetic Dentistry, 57, 647-649.] Though this reference study was on zeroing, I would still advise the current study as a pilot observation and to expand it further with a robust sample size and gold standard comparator. The methodology and statistical analysis used in the study seem adequate and justifiable. In the dearth of similar studies, the discussion can only focus on the current study. Clinically significance could be explained with literature established values that can add more value to the results obtained. Is the work clearly and accurately presented and does it cite the current literature? Yes Is the study design appropriate and is the work technically sound? Yes Are sufficient details of methods and analysis provided to allow replication by others? Yes If applicable, is the statistical analysis and its interpretation appropriate? Yes Are all the source data underlying the results available to ensure full reproducibility? Yes Are the conclusions drawn adequately supported by the results? Yes Competing Interests No competing interests were disclosed. Reviewer Expertise Removable Prosthodontics, Fixed Prosthodontics, Dental Material Sciences, Implant Prosthodontics, Maxillofacial Prosthodontics, Digital Prosthodontics. I confirm that I have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard. reply Respond to this report Responses (0) Sethuraman R. Peer Review Report For: Articulator Zeroing on Condylar Guidance Values: A Comparative Study of Hanau and Artex Systems [version 1; peer review: 2 approved] . F1000Research 2026, 15 :580 ( https://doi.org/10.5256/f1000research.198156.r478358) NOTE: it is important to ensure the information in square brackets after the title is included in this citation. The direct URL for this report is: https://f1000research.com/articles/15-580/v1#referee-response-478358 Alongside their report, reviewers assign a status to the article: Approved - the paper is scientifically sound in its current form and only minor, if any, improvements are suggested Approved with reservations - A number of small changes, sometimes more significant revisions are required to address specific details and improve the papers academic merit. Not approved - fundamental flaws in the paper seriously undermine the findings and conclusions Adjust parameters to alter display View on desktop for interactive features Includes Interactive Elements View on desktop for interactive features Competing Interests Policy Provide sufficient details of any financial or non-financial competing interests to enable users to assess whether your comments might lead a reasonable person to question your impartiality. 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