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Stomatologija 2011; 13 (3): 87-91 216 KB

Soft tissue thickness changes after correcting Class III malocclusion with bimaxillar surgery

Andris Abeltins, Gundega Jakobsone

Summary

The aim of this study was to evaluate and analyse soft tissue thickness changes after bimaxillary orthognathic surgery.

Materials and methods. Eighty three consecutive patients (54 males and 29 females) with Class III malocclusion operated with bimaxillary orthognathic surgery were enrolled in this study. Standardized lateral cephalograms of adequate quality were analysed.

Results. The mean upper lip thickness decreased as a result of the surgery and statistically significant differences were recorded (p<0.01). The statistically significant difference in the post surgical tissue thickness of the lower lip also was recorded (p<0.05). Subjects with thick upper lips compared to patients with thin upper lips demonstrated greater (0.7 mm) and statistically significant (p<0.01) increase of vertical nasal projection. Vertical growth pattern had an influence only on B point to lower lip distance, which exhibited greater (2.2 mm; p<0.01) decrease during observation period.

Conclusion. It was found differences in the soft tissue responses between patients with thick or thin soft tissues after bimaxillary surgery and it should be taken into account while planning operation.

Key words: orthognathic surgery, soft tissue changes.

Received: 10 04 2010

Accepted for publishing: 23 09 2011

*Department of Orthodontics, Riga Stradins University

Andris Abeltins* – D.D.S., RCS (Ed), doctoral student in orthodontics

Gundega Jakobsone* – D.D.S., RCS (Ed), PhD, assoc. prof.

Address correspondence to Dr. Andris Abeltins, Department of Orthodontics, Riga Stradins University, 20 Dzirciema, Riga LV 1007, Latvia.

E-mail address: aabeltins@navigator.lv



	Baltic Dental and Maxillofacial Journal

September, 2011, Vol. 13, No. 3 CONTENTS SCIENTIFIC ARTICLES In vitro evaluation of cytotoxicity of permanent prosthetic materials Vaidotas Sabaliauskas, Rima Juciute, Virginija Bukelskiene, Vygandas Rutkunas, Rita Trumpaite-Vanagiene, Alina Puriene 75-80 Specific signaling molecule expressions in the interradicular septum in different age groups Maris Grzibovskis, Ilga Urtane, Mara Pilmane, Iveta Jankovska 81-86 Soft tissue thickness changes after correcting Class III malocclusion with bimaxillar surgery Andris Abeltins, Gundega Jakobsone 87-91 Postmenopausal osteoporosis and tooth loss Anda Slaidina, Una Soboleva, Ilze Daukste, Agnis Zvaigzne, Aivars Lejnieks 92-95 Growth factors, genes, bone proteins and apoptosis in the temporomandibular joint (TMJ) of children with ankylosis and during disease recurrence Mara Pilmane, Andrejs Skagers 96-101 CLINICAL CASE REPORTS Focal epithelial hyperplasia: Case report Alina Puriene, Arunas Rimkevicius, Mindaugas Gaigalas 102-104 © 2011 Stomatologija		Stomatologija 2011; 13 (3): 87-91 216 KB Soft tissue thickness changes after correcting Class III malocclusion with bimaxillar surgery Andris Abeltins, Gundega Jakobsone Summary The aim of this study was to evaluate and analyse soft tissue thickness changes after bimaxillary orthognathic surgery. Materials and methods. Eighty three consecutive patients (54 males and 29 females) with Class III malocclusion operated with bimaxillary orthognathic surgery were enrolled in this study. Standardized lateral cephalograms of adequate quality were analysed. Results. The mean upper lip thickness decreased as a result of the surgery and statistically significant differences were recorded (p<0.01). The statistically significant difference in the post surgical tissue thickness of the lower lip also was recorded (p<0.05). Subjects with thick upper lips compared to patients with thin upper lips demonstrated greater (0.7 mm) and statistically significant (p<0.01) increase of vertical nasal projection. Vertical growth pattern had an influence only on B point to lower lip distance, which exhibited greater (2.2 mm; p<0.01) decrease during observation period. Conclusion. It was found differences in the soft tissue responses between patients with thick or thin soft tissues after bimaxillary surgery and it should be taken into account while planning operation. Key words: orthognathic surgery, soft tissue changes. Received: 10 04 2010 Accepted for publishing: 23 09 2011 Department of Orthodontics, Riga Stradins University Andris Abeltins – D.D.S., RCS (Ed), doctoral student in orthodontics Gundega Jakobsone* – D.D.S., RCS (Ed), PhD, assoc. prof. Address correspondence to Dr. Andris Abeltins, Department of Orthodontics, Riga Stradins University, 20 Dzirciema, Riga LV 1007, Latvia. E-mail address: aabeltins@navigator.lv