Obesity is a widespread chronic inflammatory disorder characterized by an increased overall disease burden and significant association with periodontitis. The aim of this prospective clinical cohort study was to investigate the effect of obesity on orthodontic tooth movement. Fifty-five adolescent patients (27 males, 28 females) with a mean (SD) age of 15.1 (1.7) years and mean (SD) body mass i...

UNLABELLED There has been a paradigm shift within orthodontics in the use of lingual fixed appliances compared with the use of labial fixed appliances on the basis of perceived benefits and acceptance by patients. METHODS A matched case-control prospective longitudinal study of adult patients treated in the Orthodontic Department, Prince Philip Dental Hospital, Hong Kong. Group A consisted of...

Decalcification of enamel during fixed orthodontic appliance treatment remains a problem. White spot lesions are observed in nearly 50% of patients undergoing orthodontic treatment. The use of fluoride-containing orthodontic materials has shown inconclusive results on their ability to reduce decalcification. The aims of this investigation were to compare the levels of Streptococcus mutans (SM) ...

Halitosis is a widely spread condition. There are numerous causes. The aim of this study was to investigate the influence of fixed orthodontic appliances on the occurrence of halitosis. 55 patients in an orthodontic practice were monitored at three points in time after application of orthodontic appliance (T1: immediately after application, T2: 4 weeks after application, T3: 3 months after appl...

INTRODUCTION This purpose of this study was to document and investigate changes in periodontal pathogen levels before, during, and after orthodontic treatment in adolescents. METHODS DNA gene probe analysis was used to quantify the levels of 8 periodontal pathogens before, during, and after treatment with fixed orthodontic appliances in 190 concurrently treated adolescent orthodontic patients...

Background: Anterior crossbite is a case that when upper anterior are positioned palatally than lower teeth in centric occlusion. Orthodontic appliances using expansion screw could be solution for tooth treatment. Purpose: To figure out the optimal fabrication process of orthodontic single screw. Case analysis: Dental laboratory provided maxillary dental appliance with on 21. technician also re...

Relapse after orthodontic tooth movement (OTM) is an undesirable outcome that involves a number of factors. This study investigated the remodelling of the alveolar bone and related periodontal structures during orthodontic relapse in rat molars. The maxillary right first molars of 35 Wistar rats were moved mesially by a fixed orthodontic appliance for 10 days and the contralateral molars served...