Three-dimensional localization of impacted canines and root resorption assessment using cone beam computed tomography.

The purpose of this study was to develop a new way to localize the impacted canines from three dimensions and to investigate the root resorption of the adjacent teeth by using cone beam computed tomography (CBCT). Forty-six patients undergoing orthodontic treatments and having impacted canines in Tongji Hospital were examined. The images of CBCT scans were obtained from KaVo 3D exam vision.

The airway, breathing and orthodontics.

Dentists need to play a bigger role in managing airway development and craniofacial formation even though the relationship between the airway, breathing and malocclusion remains quite controversial. Certainly the airway, the mode of breathing and craniofacial formation are so interrelated during growth and development that form can follow function and function can follow form. So, it is imperative to normalize form and function as early as possible so that function is optimized for life.

How we got from there to here and back.

Edward H. Angle dominated orthodontic armamentarium, diagnosis and treatment planning for almost a half century until Charles Tweed successfully challenged his mentor's nonextraction mantra. The ensuing diagnostic regimen used by Tweed, however, proved to have serious limnitations and clearly resulted in the extraction of too many teeth.

How we got from there to here and back.

Edward H. Angle dominated orthodontic armamentarium, diagnosis and treatment planning for almost a half century until Charles Tweed successfully challenged his mentor's nonextraction mantra. The ensuing diagnostic regimen used by Tweed, however, proved to have serious limitations and clearly resulted in the extraction of too many teeth.

Effects of adenoidectomy and changed mode of breathing on incisor and molar dentoalveolar heights and anterior face heights.

Background: Mouth breathing may affect facial form and the positions of the teeth.

Objectives: To determine whether the increased dentoalveolar and facial heights found in mouth breathing children with enlarged adenoids are maintained following adenoidectomy and changed mode of breathing from mouth to nose.

Methods: The subjects were Swedish children, either mouth breathers with nasal obstruction caused by large adenoids, or nose breathers.

Refining occlusion with muscle balance to enhance long-term orthodontic stability.

The primary objective of orthodontic treatment is the movement of teeth into a more ideal esthetic and functional relationship. Finishing a case with the muscles of mastication in equilibrium is another very important objective that often does not receive enough consideration. If the occlusal forces in maximum intercuspation are distributed unevenly around the arch, tooth movement most likely will occur and an endless procession of retainers will be necessary for retention.

Refining occlusion with muscle balance to enhance long-term orthodontic stability.

The primary objective of orthodontic treatment is the movement of teeth into a more ideal relationship, not only for aesthetic, but also for functional considerations. Another very important objective, often not given enough consideration, is the need to finish the case with the muscles of mastication in equilibrium. If muscle balance is not achieved, an endless procession of retainers is required for retention.

Combining functional appliances in the straightwire system.

The Trainer for Braces (T4B) helps speed up fixed appliance therapy, by derotating teeth and pushing them into the line of the arch. It also aids treatment stability by reducing the influence of undesirable myo-functional habits and retraining the oral musculature. I issue a T4B to all my patients on the day of bracket placement.