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At least 199 records · Page 11Linked to original sources
PubMedDate not supplied

[Motivation in patients for surgical treatment of prognathism using bimaxillary surgery].

A postoperative survey was conducted to evaluate the motivation of twenty three patients following surgical correction of mandibular prognathism. The operative technique of bimaxillary surgery was applied to all patients. The major reason for surgery was esthetics. Majority of patients were informed about surgery by their family dentists, and almost all of them were satisfied and stated that their expectations were fulfilled.

Adult↗
PubMed1994

Evaluation of masticatory function after sagittal split ramus osteotomy for patients with mandibular prognathism.

The aim of this study was to measure the changes in masticatory function for 1 year after sagittal split ramus osteotomy. Thirty prognathic patients who underwent preoperative and postoperative orthodontic treatment participated in this study. Their masticatory performance, occlusal contact area and points, and biting force were measured before surgery and 3, 6, and 12 months postoperatively. From 3 months after surgery, masticatory efficiency was greater than that found preoperatively, and the increase was significant 6 months after surgery. Occlusal contact area and points tended to increase from 3 months after surgery, and there was a significant increase 12 months after surgery. The bilateral biting force was lower 3 months after surgery than it was preoperatively, but it had increased significantly and was balanced on left and right sides 12 months after surgery.

Adolescent↗
PubMed1996

Effects of dental decompensation on the surgical treatment of mandibular prognathism.

The dental compensation presented in patients with the Class III malocclusion, or mandibular prognathism, and its importance to the surgical-orthodontic treatment, was evaluated in this study. The study involved the cephalometric examination of two groups of patients, who were considered either adequately or inadequately treated during the presurgical orthodontic phase. The results showed that dental compensation is common in both the maxillary and mandibular arches. Such compensation is more frequently eliminated from the mandibular arch during presurgical orthodontic treatment. There was some correlation between decompensation and the amount of mandibular reduction during surgery and a strong correlation between cephalometric postsurgical mandibular excess and the lower anterior facial height.

Cephalometry↗
PubMed1996

Long-term stability following surgical orthodontic treatment of mandibular prognathisms: investigation by means of lateral X-ray cephalogram.

The purpose of this study was to investigate the long-term stability of jaw relations and occlusion following surgical orthodontic treatment of mandibular prognathisms and skeletal openbites. Subjects consisted of fifteen adult patients. Ten patients underwent the sagittal split ramus osteotomy (SSRO) of the mandible and five patients underwent two jaw surgery (Le Fort I osteotomy of the maxilla and SSRO of the mandible). They were observed over five years after the end of active treatment, and lateral X-ray cephalograms were taken at each stage. In the SSRO group, pogonion was retrograded an average of 8.7mm due to the operation and it was further replaced 0.4mm backward after the end of active treatment. Although the vertical distance between nasion and menton decreased 2.9mm between the operative period, it increased 1.8mm after the end of active treatment. On the other hand, in the two jaw surgery group, point A was advanced 4.0mm forward and < SNA increased 3.1 degrees between the operative period. Pogonion was retrograded 11.4mm between the same period, but moved 0.7mm forward after the end of active treatment. A comparison of the osteosynthesis methods revealed that pogonion in the wiring group was retrograded 8.3mm backward between the operative period, but moved 2.1mm forward during the postsurgical orthodontic treatment. Pogonion in the rigid group was retrograded 12.6mm backward between the operative period, but moved 1.6mm forward during the postsurgical orthodontic treatment. However, both groups were stabilized completely after the end of active treatment. A comparison of the differences in the orthodontic treatment method revealed that < Ul-SN in the extraction group inclined 8.3 degrees lingually during presurgical orthodontic treatment, but it tipped 7.0 degrees labially during the postsurgical orthodontic treatment and inclined 3.4 degrees lingually after the end of active treatment. < Ul-SN in the non-extraction group inclined 5.5 degrees lingually during the presurgical orthodontic treatment, but it tipped 2.0 degrees labially during the postsurgical orthodontic treatment and inclined 1.9 degrees lingually after the end of active treatment.

Adult↗
PubMed1998

[A conservative compression surgical orthodontic method for treating upper prognathism in adults].

A clinical example of effective treatment of an adult patient with combined deformations of the jaws (upper prognathism of the third degree and open occlusion of the second degree) is reported. Fragmented osteotomy of the maxilla at the level of symmetrical removal of second molars is performed. Due to Engle's arches soldered with Vasil'ev's splint and compression, a maxillary fragment was shifted 10 mm backward and downward at the expense of compressing the inter-root septae; the first molars were preserved. Diastemata and tremata between incisors of both jaws were eliminated by the same method.

Adult↗
PubMed1999

Fixed prosthodontics in skeletal Class III patients with partially edentulous jaws and age-related prognathism: the basal osseointegration procedure.

Today, prognathism in the partially or completely edentulous jaw can be treated with endosteal implants and fixed prostheses. The preferred procedure uses basal osseointegration. If the distribution of available bone is favorable, the prosthodontic suprastructures can be loaded early, taking the various phases of bone regeneration into account. Invasive surgical interventions, specifically iliac crest transplants, are rarely indicated and can be avoided in most cases. Patients are able to return to their everyday lives within a few days.

Age Factors↗
PubMedDate not supplied

[Prosthetic treatment of a patient with complicated functional inferior prognathism].

The authors present their own case of prosthetic treatment of a patient with functional inferior prognathism complicated by deviation and supraocclusion. Two-stages treatment has been applied with utilization of overlaid splint-dentures and isometric and active exercises. Esthetic crowns on which desired canine teeth conduction has been obtained and frame dentures introduced in the new conditions of occlusion have been performed as the final treatment. Proper function of mastication has been restored and improvement of the appearance has been obtained that has considerably improved the frame of mind of the patient.

Crowns↗