Effect of bone borne trans palatal distractor on both collapsed maxilla and maxillary air sinus

الملخص EN

Collapsed maxilla is one of the maxillofacial disorders which results in decreased buccal corridor, bilateral and / or unilateral cross-bite, tapered maxilla,reduced maxillary sinus volume, and crowding of the maxillary teeth.

Collapsed maxilla was treated either by non-surgical techniques; as slow orthodontic expansion (SOE) or rapid palatal expansion (RPE) as one part or surgical techniques as either surgically assisted rapid palatal expansion (SA-RPE) or 2 segmented Le Fort I-type osteotomy with expansion (LFI-E) as another part .

The aim of the study was to evaluate the effect of transpalatal distraction through using bone borne device in treatment of collapsed maxilla.

Ten patients of both sexes (6 males and 4 females) were included in this study.

All patients were evaluated preoperatively through clinical examination both intraorally and extraorally.

Intraoral photographs were taken for each patient preoperatively as well as postoperatively for comparison of the final outcomes Repeated measures ANOVA test showed that time time*group interaction had an effect on mean volumetric measurements.

Device type, side and time*side had no effect.

Repeated measures ANOVA test showed that time only had an effect on mean measurements.

Time*group interaction and device type had no effect.

Repeated measures ANOVA test showed that time only had an effect on mean measurements.

Time*group interaction and device type had no effect.

Conclusion: Use of transpalatal distractor was an effective method for treatment of transverse collapse.