Computer Assisted Orthognathic Surgery. Facial Asymmetry

Università degli Studi di Sassari

Status: Completed

Conditions: Facial Asymmetry

Treatments: Procedure: computer assisted orthognathic planning and surgery of asymmetric patients; Procedure: classic procedure of planning

Study type: Interventional

Funder types: Other

Identifiers

NCT01879969

IDM 06/06/13

Details and patient eligibility

About

The specific aims of the study were to measure and compare the rates of alignment and cant reduction of the dental and facial midlines among the two groups.

Full description

The purpose of this randomized, controlled, clinical study, was to evaluate the most accurate procedure for orthognathic correction of facial asymmetry. The investigators compared two different methods of surgical planning: classical (esthetic analysis of the face, cephalometric study of the skull in lateral and posteroanterior cephalograms, analysis and surgical simulation of plaster casts mounted in semi-individual articulators, development of a surgical acrylic resin intermediate splint) and digital planning (cone-beam computed tomography, data acquisition, software-assisted virtual surgery -Maxilim; Medicim, Mechelen, Belgium- and CAD/CAM processing of the surgical intermediate splint).

Enrollment: 20 patients

Sex: All

Ages: 21 to 54 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• facial asymmetry or mandibular deviation (cant of the occlusal plane > 3° and/or midline discrepancies > 2.5 mm)
• presence of all central incisors,
• pre- and postoperative radiographs and plaster casts (group 1)
• cranial CBCT images (group 2)
• pre- and postoperative digital photographs.

Exclusion criteria

• previous trauma involving the hard or soft facial tissues
• functional deviation of the mandible
• incomplete records (CBCT, radiographs, casts or digital photographs).

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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20 participants in 2 patient groups

asymmetric patients, classic procedure

Experimental group

Description:

random selected

Treatment:

Procedure: classic procedure of planning

asymmetric patients, computer assisted

Experimental group

Description:

random selected

Treatment:

Procedure: computer assisted orthognathic planning and surgery of asymmetric patients