Influence of maxillary advancement surgery on skeletal and soft-tissue changes in the nose - a retrospective cone-beam computed tomography study.

Objectives: Surgical correction of skeletal maxillary retroposition is often associated with changes in the morphology of the nose. Unwanted alar flaring of the nose is observed in many cases. The aim of the present study was therefore to investigate the influence of surgical advancement of the maxilla on changes in the soft-tissue morphology of the nose.

Distribution of endosseous bony canals in the mandibular symphysis as detected with cone beam computed tomography.

Purpose: The purpose of this article was to investigate the distribution of endosseous bony canals in the anterior mandible using cone beam computed tomography (CBCT) technology.

Materials And Methods: Two hundred ninety-nine images based on CBCT of the anterior mandible were analyzed for the presence of endosseous canals. The bony canals were observed in relationship to the adjacent anatomical structures, and relationships between their topographic variability and patient age and gender were analyzed.

Use of stereolithographic drilling and cutting guides in bilateral mandibular distraction.

Mandibular distraction osteogenesis is used in the treatment of patients with syndromic and nonsyndromic class II mandibular hypoplasia. The three-dimensional distraction of the mandible is extremely complex. Past experience with mandibular distraction has demonstrated the indispensability of solid presurgical planning to achieve predictable results.

Changes after surgically-assisted maxillary expansion (SARME) to the dentoalveolar, palatal and nasal structures by using tooth-borne distraction devices.

Different devices are available to aid surgically-assisted maxillary expansion. In this study we have evaluated the changes to the anchoring teeth, the hard palate, and the lower nasal passage made by tooth-borne distraction devices. Thirty-one patients (mean (SD) age 28 (2) years) with deficiencies in the transverse width of the maxilla were examined by computed tomography and cone beam scans before and after operation.

Changes in the mandibular and dento-alveolar structures by the use of tooth borne mandibular symphyseal distraction devices.

Purpose: Different devices to perform a mandibular symphyseal distraction osteogenesis (MSDO) are available. This study evaluates how tooth borne distraction devices change to the teeth, the mandible and the condyles.

Materials And Methods: 19 patients (mean age 27.

Long term effects of surgically assisted rapid maxillary expansion without performing osteotomy of the pterygoid plates.

Purpose: Surgically assisted rapid maxillary expansions (SARME) are commonly used to widen the maxilla. This study evaluates long term stability of surgically assisted rapid palatal expansion without performing osteotomy of the pterygoid plates and its effects on nasal airway volume.

Materials And Methods: 13 patients (mean age 31, 23+/-6, 11) with a maxillary transverse deficit of at least 5mm were examined 1 month before and on average 63 months after a mean palatal distraction of 8.