JCO/MAY 2003 C II nonextraction treatment involving headgear and Class II elastics often requires exceptional patient cooperation. As a result, more and more clinicians are prescribing “noncompliance” molar distalization appliances. These appliances have some negative side effects, however, including a significant loss of anchorage that can manifest itself in mesially tipped bicuspids, anterior...

To achieve proper recontouring of anterior and posterior teeth, to obtain optimal morphology during enamel stripping, it is important to be aware of dental anatomy. This study aimed at evaluating crown dimensions and proximal enamel thickness in a sample of 40 extracted sound, human, mandibular, second bicuspids (20 right and 20 left). Mesiodistal, cervico-occlusal and buccolingual crown dimens...

A healthy 41-year-old male presented for treatment and expressed a desire for smile enhancement. His chief complaint was that his teeth were discoloured and that his upper lip was too thin and flat and combined with deep facial lines made him look old. The oral hygiene status was good and there was no active gingival or periodontal disease. Extra-oral and intra-oral photos and stereophotogrammi...

introduction a large number of orthodontists prefer to rebond the failed bonded brackets or use recycled brackets in some instances. the aim of this study was to compare the shear bond strength of rebonding with using recycled brackets on enamel surface. methods bonding of brackets on the surface of extracted first bicuspids was tested in five different groups to compare their shear bond streng...

This investigation demonstrates the reliability of fluorescein for detecting the permeability of incipient dental caries (white spots). Artificial white spots were created on the buccal surface of 12 human bicuspids by viscous lactic acid (pH 4). Permeability of these lesions was assessed and reassessed before and after 24 and 48 hr of acid challenge using two disclosants: sodium iodide and sod...

The trauma of surrounding bone structures during exodontia represents a mayor clinical shortcoming of conventional oral surgery. An alternative minimal invasive technique is presented to support aesthetic rehabilitation by conservation of alveolar bone walls. Endoscopically assisted root splitting (EARS) is a new technique for root removal wothout ostectomy. EARS consists of enlargment of the r...

Extraction is very frequent indication in orthodontic planning, especially when there are crowding, biprotrusion, and aesthetically unpleasant profiles. Next to extraction comes space closure, which represents a challenge for orthodontists because of extended treatment time, discomfort created for the patient, tissue tolerance, and stability concerns. When it comes to what mechanics to choose f...

As previously discussed, because of differences in anatomy, there are differences in techniques for intubating the trachea of infants and children compared with adults.[1–4,17–19,99,114,115] Because of the smaller dimensions of the pediatric airway there is increased risk of obstruction with trauma to the airway structures. A technique to be avoided is that in which the blade is advanced into t...

The aims of this study were to determine the diagnostic accuracy and reproducibility of the laser fluorescence device (LF), and the relationship between laser fluorescence readings taken at the entrance of the fissure, ICDAS visual examination caries detection system and the histological depth of the lesion. Two hundred and forty teeth (122 human third molars and 118 bicuspids) were selected fr...