Comparison of 1-year follow-up results of Forsus, headgear, and extraction treatment in Class II malocclusion

INTRODUCTION

This cross-sectional case-control observational study aimed to use lateral cephalometric radiographs to examine the 1-year follow-up results of 3 different treatment methods during Class II correction.

METHODS

The authors evaluated the lateral cephalometric records of patients treated with the Forsus fatigue-resistant device (group 1, n = 28), cervical headgears (CHG; group 2, n = 28), and maxillary first premolar extraction with fixed orthodontic appliances (group 3, n = 28). Each group was followed at pretreatment, posttreatment, and 1-year posttreatment. The data obtained were analyzed using the 1-way analysis of variance and Kruskal-Wallis methods.

RESULTS

At posttreatment, the ANB angle decreased significantly (P = 0.001) in the CHG group compared with the Forsus and extraction groups. The lower and upper facial heights of the CHG group were significantly increased (P <0.001) at posttreatment compared with the other groups. The mandibular incisor protrusion in the Forsus group was significantly higher (P = 0.005) than in the extraction patients, and extrusion of the mandibular incisors was significantly higher (P = 0.002) in the CHG group than in the Forsus group at posttreatment.

CONCLUSIONS

All 3 methods were effective in correcting Class II malocclusion, mainly at the dentoalveolar level, but some amount of relapses occurred after 1-year of follow-up. Distance of mandibular incisors and the mandibular plane changed significantly, increasing in CHG and extraction groups after 1-year of follow-up.

Prevalence of malocclusion in Turkish children and adolescents: A systematic review and meta-analysis

OBJECTIVES

The aim of this article is to establish a comprehensive nationwide prevalence of malocclusion traits on the sagittal, vertical, and transverse planes of space in the Turkish population.

MATERIAL AND METHODS

A systematic search of PubMed, Scopus, and Web of Science was supplemented by manual searches of Google Scholar and the reference lists of included studies. Original Turkish health studies of any age were included. Strengthening the Reporting of Observational Studies in Epidemiology assessed study quality and bias (STROBE). Sagittal, vertical, and transverse malocclusion features were retrieved and gathered.

RESULTS

Eleven studies were selected from 434 titles. Two studies showed a high risk of bias, eight low and one moderate. Thirteen thousand two hundred seventy-one individuals were investigated from early childhood to late adulthood. Most studies were sampled from universities and dental (nonorthodontic) clinics. The pooled malocclusion prevalence was 56% for Class I (95% confidence interval (CI): 44-68%), 31% for Class II (CI: 6-42%), and 11% for Class III (CI: 21-37%). The other common types of malocclusions were crowding (41%, CI: 18-65%), overjet (34%, CI: 21-50%), negative overjet (13%, CI: 7-20%), and crossbite (11%, CI: 7-15%). Additionally, there was no significant difference in Class I (relative risk [RR] = 1.00, [0.96-1.05]), Class II ([RR] = 0.97, [0.92-1.03]), and Class III ([RR] = 1.08, [0.96-1.225]) malocclusion by gender.

CONCLUSIONS

This study showed Class I malocclusion has a high prevalence among the Turkish population followed by Class II and Class III malocclusions. In addition, crowding and overjet were the most prevalent malocclusions among Turkish individuals. There were no significant differences in the prevalence of malocclusions between males and females.