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At least 1,027 records · Page 57Linked to original sources
PubMed1992

[Intrusion of the anterior teeth with the segmented-arch technic of Burstone--a clinical study].

The purpose of this study was to examine the efficiency of intrusion mechanics as described by Burstone. Thirty-one cases of deep bite with an overbite equal to or more than 4 mm were analysed by means of cast models, lateral cephalometric views and dental films of the front teeth prior to and after intrusion. The following parameters were considered: 1. Extent of the intrusion relative to a selective point of force application, 2. duration of the intrusion, and 3. amount of root resorption. The average extent of the intrusion in the case of the upper front teeth was 2.3 mm, and in the case of the mandible 3 mm. The rate of intrusion per month was 0.53 mm in the maxilla, and 0.54 mm in the mandible. Analysis of the point of force application showed that the centre of resistance must be presumed to be more distal than previously assumed. For an average treatment time of 4.3 months in the maxilla, and 5.5 months in the mandible, the apical root resorption was minimized by applying dosed force using a calculable force system. A buccal root torque arch employed in three cases permitted, in class II/1 cases, a combined movement comprising lingual tipping of the crown and intrusion, the intrusion component being clearly delayed in comparison with tipping. The segmented arch technique allows an objective intrusion of anterior teeth. This depends on choosing the appropriate point of force attachment and the correct amount of force.

Adolescent↗
PubMed1990

Late management of cleft lip and palate problems: a joint orthodontic/surgical approach.

Three patients are presented from a larger case series of adolescent cleft lip and palate patients to illustrate a combined approach to the treatment of severe facial and dentoalveolar discrepancy. The following treatment regime was employed: orthopaedic expansion of the maxillary dentoalveolus; tertiary bone grafting of the alveolar cleft; upper and lower dental arch alignment and decompensation; and orthognathic surgery to correct the skeletal defect by means of a maxillary single unit advancement. The advantages of tertiary grafting (when secondary grafting has not been carried out) in the orthodontic and surgical management of these patients is discussed.

Adolescent↗
PubMed1978

[The Michigan splint, a diagnostic and therapeutic aid for patients with disorders of the masticatory system. I. Construction on an articulator and fitted in the patient's mouth].

The Michigan splint is an occlusal appliance for patients with functional disturbances of the gnathic system. It helps to stabilize, reposition and to equilibrate and is a means of diagnosis and therapy. Form and function of the splint are described along with its construction. Special attention is given to the incorporation and the checking appointments with the patient. The splint helps to relax the masticatory musculature. Thereby the madibular recording is facilitated. It helps to make a correct functional analysis and to induce a proper occlusal therapy.

Humans↗