The present study investigated the effects of two orthodontic appliances on changes in the cephalometric reference planes using the three-dimensional finite element method. We simulated the use of a headgear and an orthopedic facial mask, two devices for the application of orthodontic force to the jaw. Using a finite element model of the skull, orthodontic force was applied to the maxillary fir...

UNLABELLED INTRODUCTION. Edentulous ridge in the posterior maxilla is often compromised by reduced bone volume. This anatomical condition limits the implant placement of 10 mm in length without sinus augmentation. The use of shorter implants with osteotome technique minimizes the need of more extensive sinus floor elevation, thus reducing the duration and morbidity of the treatment. MATERIALS A...

A review of maxillary sinus floor elevation as an integral part of restoring the posterior maxilla is discussed. The related anatomy of the area and the current techniques available are reviewed. The classic lateral antrostomy pioneered by Tatum appears to be the most common sinus lift procedure. The more conservative crestal approach, advocated by Summers, provides another effective way of all...

Giant cell granuloma is rare in the head and neck region and most commonly affects the maxilla and mandible. Giant cell granulomas are benign but occasionally aggressive lesions that are traditionally treated with surgery. Because it is a benign process, less radical and non-surgical treatment alternatives are required. Corticosteroid injection is a viable alternative in the treatment of centra...

In this article, we report the successful surgical treatment of a patient, 34 years of age, who had a severe gummy smile and a class II malocclusion. The patient had an 11-mm gingival exposure during full smile and a convex profile. A LeFort I osteotomy combined with a horseshoe osteotomy was used for the superior repositioning of the maxilla;then, an intraoral vertical ramus osteotomy (IVRO) a...

Fibrous dysplasia is a benign fibrous-osseous lesion in which normal bone is replaced by fibrous connective tissue and immature bone, affecting only one (monostotic) or several bones (polyostotic) and mainly occurring in children and young adults. When present in facial bones, the maxilla is more frequently involved than the mandible, which can cause facial asymmetry in addition to dental compl...

Patients with clefts of the lip and palate commonly develop maxillary hypoplasia. In addition to orthognathic surgery, augmentation of the anterior maxilla may be necessary in these patients to restore symmetry to the nasomaxillary complex. Bone graft may be obtained from numerous sites. All require a separate incision at the donor site and may result in additional morbidity.The authors describ...

MD Wells, S Oishi, M Sengezer. Sagittal fractures of the palate: A new method of treatment. Can J Plast Surg 1995;3(2):87-92. A new technique is described for stabilizing complex vertical fractures of the maxilla. Advantageous use of the comminuted fracture pattern of the maxillary buttresses allows the maxilla to be divided into two parts at the Le Fort I level. With intermaxillary fixation ap...

Purpose: The purpose of this report is to present a reliable surgical and prosthodontic protocol for the treatment of the atrophic maxilla by placing four zygomatic implants. Materials and Methods: The surgical and prosthodontic procedures are described for the retreatment of a 63-year-old female patient who had previously undergone an iliac crest bone graft transplant, which had resorbed. Resu...