The width and length of the anterior teeth, the dimensions of the frontal dental arches and the dimensions of the hard palate were measured (24 men and 56 women, age range of 18-30 years). The results showed gender-related dimorphism only for the cervical width of the maxillary canine, which were wider in men, p < 0.05. The width-to-length ratios of the maxillary frontal teeth varied from 0.82 ...

The edentulous state of the oral cavity is equivalent to the absence of any other body part with specific morphological and psychological sequelae. This case presents a patient with an edentulous maxillary arch opposing a dentate mandibular arch. The dentist has a difficult mission in evaluating the biomechanical differences in the supporting tissues for the two arches and applying the appropri...

INTRODUCTION The treatment effects and the short-term (0.9 +/- 0.45 years) relapse potential of phase I slow maxillary expansion, with a bonded palatal expander or a quad-helix appliance combined with a mandibular banded Crozat/lip bumper and followed by 12 to 15 months of retention, were examined. METHODS Pretreatment (8.8 +/- 1.7 years) and posttreatment (11.1 +/- 1.7 years) models of 54 pa...

Distal molar relationships can arise due to the mesiopalatal rotation of maxillary molars. In some cases, an ideal Class I intercuspation can be achieved with the opposing molar and a Class II relationship can be corrected by molar derotation. Maxillary molars consist of three roots and, due to the early loss of the deciduous second molars, the palatal root acts as a hinge for mesial rotation o...

Asymmetric, articulated jaws are characteristic of most vertebrate species; they derive from the first pharyngeal arch (PA1) which generates both maxillary and mandibular components. PA1 is colonized by cranial neural crest cells (CNCCs) which give rise to most bones and tendons of the jaws. The elements formed by different CNCCs contingents are specified by the combinatorial expression of Dlx ...

The aim of this study was to comparatively evaluate the intrusive forces and buccolingual torquing moments generated during anterior maxillary intrusion using different maxillary incisor intrusion mechanics. Five wire specimens were used for each of the following intrusive arches: blue Elgiloy utility arch 0.016 x 0.016 inch, TMA utility arch 0.017 x 0.025 inch, Burstone TMA intrusion arch 0.01...

BACKGROUND Both maxillary protraction and rapid expansion are recommended for patients with cleft palate and alveolus. The aim of the study is to establish a three-dimensional finite element model of the craniomaxillary complex with unilateral cleft palate and alveolus to simulate maxillary protraction with and without rapid maxillary expansion. The study also investigates the deformation of th...

OBJECTIVE Evaluation of the effect of infant orthopedics on maxillary arch dimensions in the deciduous dentition in patients with unilateral cleft lip and palate. DESIGN Prospective two-arm randomized controlled clinical trial with three participating cleft palate centers. SETTING Cleft palate centers of the Radboud University Nijmegen Medical Center, Academic Center of Dentistry Amsterdam,...

The aim of this article is to describe early maxillary alignment in patients with unilateral cleft lip and palate using a new orthopedic appliance incorporating beta-titanium wire. The new orthopedic appliance was made with acrylic resin and a spring-shaped beta-titanium wire, and the appliance was fixed onto the hard palate with microscrews under general anesthesia for approximately 1 month. A...

A relatively new approach to maxillary advancement by maxillary distraction using a combined surgical and modified orthodontic technique is described. This protocol and the technique have been used for the past 3 years (2006 to 2009) on more than 60 patients, aged between 14-29 years. Distraction of between 7 and 18 mm has been achieved, creating class 1 or mild class 2 arch relationships in cl...