An evaluation of relation between the relative parallelism of occlusal plane to ala-tragal line and variation in the angulation of Po-Na-ANS angle in dentulous subjects: A cephalometric study

Shetty, Sanath Kumar; Shenoy, Kamalakanth; Ninan, Justin; Mahaseth, Pranay

doi:10.4103/0972-4052.159968

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…This method was also used for evaluation by the raters. The outliers in the marks of OPO may be related to differences of opinion between the raters regarding the suitability of the registered treatment plane for the proper esthetics and biomechanics of each patient [ 10 ].…”

Section: Discussionmentioning

confidence: 99%

Agreement between 2 raters’ evaluations of a traditional prosthodontic practical exam integrated with directly observed procedural skills in Egypt

Khalifa¹,

Hegazy²

2018

J Educ Eval Health Prof

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PurposeThis study aimed to assess the agreement between 2 raters in evaluations of students on a prosthodontic clinical practical exam integrated with directly observed procedural skills (DOPS).MethodsA sample of 76 students was monitored by 2 raters to evaluate the process and the final registered maxillomandibular relation for a completely edentulous patient at Mansoura Dental School, Egypt on a practical exam of bachelor’s students from May 15 to June 28, 2017. Each registered relation was evaluated from a total of 60 marks subdivided into 3 score categories: occlusal plane orientation (OPO), vertical dimension registration (VDR), and centric relation registration (CRR). The marks for each category included an assessment of DOPS. The marks of OPO and VDR for both raters were compared using the graph method to measure reliability through Bland and Altman analysis. The reliability of the CRR marks was evaluated by the Krippendorff alpha ratio.ResultsThe results revealed highly similar marks between raters for OPO (mean= 18.1 for both raters), with close limits of agreement (0.73 and −0.78). For VDR, the mean marks were close (mean= 17.4 and 17.1 for examiners 1 and 2, respectively), with close limits of agreement (2.7 and −2.2). There was a strong correlation (Krippendorff alpha ratio, 0.92; 95% confidence interval, 0.79– 0.99) between the raters in the evaluation of CRR.ConclusionThe 2 raters’ evaluation of a clinical traditional practical exam integrated with DOPS showed no significant differences in the evaluations of candidates at the end of a clinical prosthodontic course. The limits of agreement between raters could be optimized by excluding subjective evaluation parameters and complicated cases from the examination procedure.

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Section: Discussionmentioning

confidence: 99%

Agreement between 2 raters’ evaluations of a traditional prosthodontic practical exam integrated with directly observed procedural skills in Egypt

Khalifa¹,

Hegazy²

2018

J Educ Eval Health Prof

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“…[ 1 ] Various anatomical landmarks and devices have been advocated for the orientation of the occlusal plane. [ 1 2 3 4 5 6 7 8 9 10 11 ] Arbitrary use of the reference planes may affect the three-dimensional (3D) orientation of the maxillary cast. [ 12 ] The accuracy of most areas on the skin as reference points can be adversely affected by the irregularity and asymmetry of the face and its features.…”

Section: Introductionmentioning

confidence: 99%

Determining the occlusal plane using hamular notch incisive papilla plane evaluator: An in vivo study

Tippashetty

Joshi

Sajjan

et al. 2020

J Indian Prosthodont Soc

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Aims: Identification and establishment of the occlusal plane in patients with impaired occlusal plane, presents a major hurdle for the execution of natural esthetics, speech, and function. The aim of this study was to minimize such errors while occlusal rehabilitation, and employ hamular notchincisive papilla (H.I.P) plane as landmark and scribe it on the cast using H. I. P evaluator and utilise for occlusal corrections. Settings and Design: HIP plane being parallel to the occlusal plane could ease the operator when it could be scribed on cast to analyze and restore the compromised occlusal plane. Materials and Methods: Dentulous casts of two hundred participants were mounted on the Hanau Wide–Vue articulator. Reference points were marked on the maxillary right central incisor and maxillary molars on casts for attaining different occlusal planes, the incisive papilla and hamular notch region were also marked for HIP plane. A plane parallel HIP was scribed on cast using HIP Evaluator. The casts were then scanned using a three-dimensional coordinate measuring machine attached to perception V5 laser scanner and measurements were made using Geomagic X design software. The most parallel occlusal plane to HIP plane was evaluated, and the reliability of HIP evaluator was verified. Statistical Analysis Used: ANOVA test, Post hoc -Bonferroni test, and independent sample “ t ”-test were carried out for the comparison between occlusal planes, among the genders and for the analysis of the angle of deviation of scribed plane on the cast to HIP plane on the right and left sides. Results: Occlusal plane III (Mesio-labial incisal edge of upper right central incisor to Mesio-buccal cusp tips of upper second molars) showed least angle of deviation with 1.316° ± 1.158° to HIP plane among tested subjects. There is no significant difference between the genders. The plane scribed on the cast with H. I. P evaluator showed relative parallelism to H. I. P plane with minimum deviation of 0.010° ± 0.363°. Conclusion: Occlusal plane III is more parallel to H. I. P plane. Scribed plane on the cast using H. I. P evaluator is parallel to H. I. P plane. H. I. P evaluator can be used as an alternative tool to establish the occlusal plane to rehabilitate patient with deficient dentition or disordered occlusal plane.

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An alternative technique for transferring ala-tragus plane to occlusion rim using a novel device

Kaushik,

Khurana,

Kumar

et al. 2024

The Journal of Indian Prosthodontic Society

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Establishing an optimal occlusal plane and adjusting the prosthesis in accordance to it are a prerequisite before initiating any prosthodontic rehabilitation procedure. A salient step in this procedure is to transfer the established plane on the record blocks or mounted diagnostic casts with accuracy. Although conventional equipment such as the fox plane analyzer and its variants are commonly used for aligning the occlusal plane in accordance to the ala-tragus plane, it is time-consuming and tedious to transfer the same onto the occlusion rims for dental students and young practitioners. The proposed design usage would be more time-saving as the rim need not be taken out from the patient’s mouth for minute corrections of the occlusal plane each time a cant is suspected using conventional fox plane analyzing device, making it a single-step transfer. Therefore, this article proposes an equipment design for a quick transfer of the ala-tragus plane to the wax occlusion rims. Clinical implication: The proposed equipment design may prove beneficial for clinicians as well as dental students to transfer the ala-tragus plane on wax occlusion rims in a single step during jaw relation, hence reducing the chair side time and contributing to the accuracy of procedure.

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An evaluation of relation between the relative parallelism of occlusal plane to ala-tragal line and variation in the angulation of Po-Na-ANS angle in dentulous subjects: A cephalometric study

Cited by 3 publications

References 15 publications

Agreement between 2 raters’ evaluations of a traditional prosthodontic practical exam integrated with directly observed procedural skills in Egypt

Agreement between 2 raters’ evaluations of a traditional prosthodontic practical exam integrated with directly observed procedural skills in Egypt

Determining the occlusal plane using hamular notch incisive papilla plane evaluator: An in vivo study

An alternative technique for transferring ala-tragus plane to occlusion rim using a novel device

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