Correlation of "K" plane to occlusal plane and three different ala-tragal lines in dentulous subjects with different skeletal forms: A cephalometric study

• Published in: The journal of Indian Prosthodontic Society Vol. 23; no. 3; pp. 253 - 258
• Main Authors: Shetty, Rajesh, Hussain, Murtaza Shabbir, Shetty, Sanath K., Mohammad, Fahad, Shetty, Mallika S., Saha, Snigdha
• Format: Journal Article
• Language: English
• Published: India Medknow Publications & Media Pvt Ltd 01.07.2023; Medknow Publications and Media Pvt. Ltd; Medknow Publications & Media Pvt. Ltd; Wolters Kluwer - Medknow
• Edition: 2
• Subjects: Adolescent; Adult; Dental Occlusion; Denture, Complete; Dentures; Ear Auricle; Humans; Malocclusion; Orthodontics; Statistical analysis; Statistics; Tooth; Young Adult; Ala tragal line; K-plane; lateral cephalogram; occlusal plane
• ISSN: 0972-4052; 1998-4057; 1998-4057
• DOI: 10.4103/jips.jips_141_23

Aim: Orientation of the occlusal plane is an important clinical procedure for complete denture fabrication. An attempt had been made to reconstruct the occlusal plane using a different reference plane. The aim of this study was to find the correlation of the "K" plane to the occlusal plane and to assess the angular deviation between the K-plane to the occlusal plane (KO) with different skeletal forms. Settings and Design: An in vivo observational study was conducted on dentulous subjects having Class I dental occlusion with different skeletal forms undergoing orthodontic treatment. Materials and Methods: The study was conducted on 54 subjects aged 18-30 years. Metallic balls (3 mm in diameter) were attached to the desired landmarks, and a lateral cephalogram was taken for each subject. Cephalometric analysis was done using the Dolphin Imaging software, and the values obtained were recorded and subjected to statistical analysis. Statistical Analysis Used: The values obtained were recorded and subjected to statistical analysis using simple descriptive analysis, Shapiro-Wilk test, Mann-Whitney U-test, and Pearson's correlation. Results: A positive correlation was found between KO with a mean angular deviation of 8.59° ± 3.05°. The angle was found to be steeper in skeletal Class II subjects. Conclusions: Clinical application of the K-plane to use as a reference plane to orient the posterior occlusal plane can enhance the treatment outcome for a removable prosthesis. The results of this study provide a theoretical foundation for the practical restoration of the occlusal plane in different skeletal forms.