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Date Published: 23/05/2025
Abstract Views: 46
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DOI: https://doi.org/10.51298/vmj.v550i2.14225
Issue
Vol. 550 No. 2 (2025)
Section
Các bài báo
How to Cite
Trường Đình, K., & Lê Linh, C. (2025). CHARACTERISTICS OF THE INCISOR AXIS AND SOFT TISSUE BASED ON RICKETTS ANALYSIS ON LATERAL CEPHALOMETRIC RADIOGRAPHS IN 10-12-YEAR-OLD CLASS II PATIENTS WITH MANDIBULAR RETROGNATHIA IN HANOI IN 2025. Vietnam Medical Journal, 550(2). https://doi.org/10.51298/vmj.v550i2.14225

CHARACTERISTICS OF THE INCISOR AXIS AND SOFT TISSUE BASED ON RICKETTS ANALYSIS ON LATERAL CEPHALOMETRIC RADIOGRAPHS IN 10-12-YEAR-OLD CLASS II PATIENTS WITH MANDIBULAR RETROGNATHIA IN HANOI IN 2025

Khởi Trường Đình, Chi Lê Linh

Main Article Content

Abstract

Objective: Description of some dimensions of the incisor axis and soft tissue characteristics in 10-12-year-old children with Class II malocclusion due to mandibular retrognathia using Ricketts analysis on lateral cephalometric radiographs in Hanoi in 2025. Subject and methods: A cross-sectional descriptive study was conducted on 78 Class II subjects with mandibular retrognathia (43 males and 35 females) using Ricketts lateral cephalometric analysis on the VNCEPH tracing software. Results: The protrusion of the upper incisors (A1┴A-Pog) is 9,22±2,18mm; the inclination of the upper incisors (A1/A-Pog) is 46,23±3,10°; the interincisal angle (A1/B1) is 89,17±7,22°. The protrusion of the lower incisors (B1┴A-Pog) is 5,57±2,16mm; the inclination of the lower incisors (B1/A-Pog) is 31,20±2,65°; the extrusion of the lower incisors (B1-OP) is 3,58±1,25mm. The protrusion of the upper lip (Ls-E) is 2,79±0,86mm; the protrusion of the lower lip (Li-E) is 2,48±0,79mm; the nasolabial angle (Pn-Sn-Ls) is 86,38±3,49°. Conclusions: The incisor axis and lip measurements of both jaws show no statistically significant differences between genders. The protrusion and inclination of the incisors are relatively closely correlated with lip protrusion in the same balanced position.

Article Details

Keywords

Ricketts analysis, later cephalometric, skeletal class II

References

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