CLINICAL AND X RAY CHARACTISITICS OF MAXILARY CONSTRICTION PATIENTS TREATED WITH RAPID MAXILLARY EXPANSION

Võ Thị Thuý Hồng1,, Nguyễn Thị Hồng2
1 Hanoi Central Odonto-Stomatology Hospital
2 Thai Nguyen University of Medicine and Pharmacy

Main Article Content

Abstract

Objective: Determined the clinical and X ray characteristics of maxillary constriction patients treated with rapid maxillary expansion. Methods: A descriptive cross-sectional. Recorded clinical features and measurements on  CBCT film before treatment of 30 patients. Results: The mean age of the patients was 11.55 ± 2.18. There was no statistically significant difference between the upper and lower dental arch widths when measured on plaster model and CBCT film. The ossification's degrees of the midpalatal suture were in stage A, B or C. The width of the upper dental arch was narrower than lower dental arch - 3.51 mm (intermolar) and - 2.21 mm (interpremolar); the maxillary width at the first molar was smaller the mandibular width 2,68 ± 1,81mm according to the Yonsei index Conclusion: the age of maxillary contriction patients treating with rapid maxillary expansion are in growing stages, the ossification's degrees of the midpalatal suture are incomplete closed stage, the maxillary is narrower than mandible when measure on plaster model and CBCT film.

Article Details

References

1. Cao Bá Tri. (2011). Đánh giá hiệu quả của việc sử dụng ốc nong nhanh trong điều trị kém phát triển chiều ngang xương hàm trên, Luận văn thạc sĩ y học, Trường Đại học Y Hà Nội..
2. Nguyễn Thị Thu Phương. (2015). Điều trị kém phát triển chiều ngang và chiều trước - sau xương hàm trên, Nhà xuất bản Y học.
3. Angelieri F, Franchi L, Cevidanes LHS, McNamara JA. Diagnostic performance of skeletal maturity for the assessment of midpalatal suture maturation. Am J Orthod Dentofacial Orthop. 2015;148(6):1010-1016.
4. Haas AJ. (1980) Long-term posttreatment evaluation of rapid palatal expansion. Angle Orthod.;50(3):189-217.
5. Garrett BJ, Caruso JM, Rungcharassaeng K, Farrage JR, et al (2008): Skeletal effects to the maxilla after rapid maxillary expansion assessed with cone-beam computed tomography. American Journal of Orthodontics and Dentofacial Orthopedics; 134(1):8-9.
6. Jimenez-Valdivia L, Malpartida-Carrillo V, Rodriguez-Cardenas Y, et al (2019); Midpalatal suture maturation stage assessment in adolescents and young adults using cone-beam computed tomography. Progress in Orthodontics.;20:38.
7. Karaman Ali (2006). Examination of the Soft tissue changes Rapid Maxillary Expansion. Dept. of Orthodontics.
8. Koo YJ, Choi SH, Keum BT, et al. (2017) Maxillomandibular arch width differences at estimated centers of resistance: Comparison between normal occlusion and skeletal Class III malocclusion. The Korean Journal of Orthodontics.; 47:167.
9. Sabrina Mutinelli. (2008) Dental arch changes following rapid maxillary expansion. European Journal of Orthodontics.:2 – 8.
10. Richard E. Barnes. (1956); The early expansion of deciduous arches and its effect on the developing permanent dentition. Am. J. Orthodont. 42, 83-97.