Introduction: The purpose of this study was to evaluate whether the external application of pulsed electromagnetic fields (PEMF’s) could enhance the amount of orthodontic tooth movement in young

The aim of this research is to attain a better understanding of the initial reaction forces induced by an intrusion mechanism (acting on the anterior teeth) on the posterior unit and to examine how these forces can be neutralized. The experiments were performed on the dentition of a dry human skull and initial tooth displacements were registered by means of two laser measuring techniques, namel...

BACKGROUND Orthodontic management of an ectopically erupted canine requires substantial amount of bodily movement which is difficult to perform and often results in root resorption. CASE PRESENTATION A 9 year old girl presented with Class I malocclusion with crowding and ectopically positioned upper left canine (23). Treatment involved extraction of all first premolars. The alignment of the u...

BACKGROUND Children can find anaesthesia induction especially distressing and postoperative psychological and physical morbidity are common. Preparation programmes for general anaesthesia (GA) are highly effective in reducing this distress. A Phase II study has already verified the effectiveness of a prototype preoperative GA-coping computer game to help children cope with induction in a dental...

Objective: The aim of this study was to evaluate and compare the amount of preoperatively planned surgical movement of the maxilla and postoperatively obtained maxillary repositioning. Materials and Method: Thirty-one patients (16 female and 15 male) were included in this study. Fifteen combined maxillary advancement and impaction, 5 isolated maxillary impaction, and 11 isolated maxillary advan...

Accelerating the rate of tooth movement is desirable to patients because it shortens treatment time and also to orthodontists because treatment duration has been linked to an increased risk of gingival inflammation, decalcification, dental caries, and root resorption. Corticotomies, which some orthodontists are currently using to speed up tooth movements, induce a regional acceleratory phenomen...

Adequate tooth reduction is a prerequisite for function, esthetics, and longevity of fixed restorations. A tooth reduction guide may be useful for establishing the proper angulation of the tooth and maximizing periodontal health and restorative success. This article describes a simple and versatile technique for an accurate evaluation of tooth reduction for fixed restorations by using a color-c...

Automatic species identification has many advantages over traditional species identification. Currently, most plant automatic identification methods focus on the features of leaf shape, venation and texture, which are promising for the identification of some plant species. However, leaf tooth, a feature commonly used in traditional species identification, is ignored. In this paper, a novel auto...

Here we describe five specimens of juvenile phytosaurs from several localities in the Upper Triassic Chinle Group of Texas and New Mexico. These include three specimens from localities in the Tecovas Formation (Texas) of Adamanian age and one each from the Revueltian-age Bull Canyon Formation and Apachean-age Travesser Formation of New Mexico. Although all of the specimens are incompletely pres...

AIM The aim of this epidemiological study was to describe the incidence and distribution of hyperdontia in the primary school population in Genoa (Italy) and to check its influence on the development of orthodontic problems in children. The collected data should also help to find out what is the best age range among children to direct a program for early diagnosis and prevention of malocclusion...