The Open Anthropology Journal

2010, 3 : 65-70
Published online 2010 January 20. DOI: 10.2174/1874912701003010065
Publisher ID: TOANTHJ-3-65

The Application of Bolton’s Ratios in Orthodontic Treatment Planning for Chinese Patients

Chun Han , Juan Dai , Hong Qian , Lei Chen , Yinxiong Wang , Na Huo and Yinzhong Duan
Department of Orthodontics, School of Stomatology, Fourth Military Medical University, 145 West Changle Road, Xi’an, Shaanxi 710032, People's Republic of China

ABSTRACT

Aim:

To investigate the application of Bolton’s ratios in the proper diagnosis and treatment planning for Chinese orthodontic patients with congenitally missing mandibular incisor.

Materials and Methods:

Twenty-seven Chinese cases (males 10, females 17) with congenitally missing mandibular incisor and class I molar relationship were recruited in this study. Guided by the anterior Bolton’s ratios, three therapeutic strategies (each for 9 patients) were carried out according to different indications, which included enamel stripping, prosthetic restoration and extraction therapy.

Results:

After treatment, all the patients achieved good occlusion with normal Bolton’s ratios and the clinical results were satisfied.

Conclusion:

It suggested that the application of Bolton’s ratios in orthodontic treatment planning for Chinese patients with mandibular congenital missing incisor might be clinically beneficial for optimum treatment outcomes.

Keywords:

Bolton’s ratios, Chinese orthodontic patients, congenitally missing teeth.