Awarded for: INTRA-ORAL THREE DIMENSIONAL SCANNING FOR ASSESSMENT OF SURGICAL OUTCOME IN PATIENTS WITH UCLP. E Chalmers, G McIntyre, W Wang, T Gillgrass, C Martin, P Mossey
Aim: To examine the reliability of intra-oral 3D scans as an alternative to study models for the assessment of dental arch relationships in 9-21 year olds with UCLP.
To evaluate patient and parent satisfaction with 3D intra-oral scanning compared with dental alginate impressions for study models.
Methods: 43 patients underwent intra-oral 3D scanning and impressions. Participants and parents scored their perception and time required for the 3D scan and impressions via a questionnaire. Three examiners scored both model formats using the MHB and GOSLON indices.
Results: All examiners achieved an intraexaminer reliability score greater than 0.98. The direct digital scans demonstrated superior interexaminer reliability to plaster models.
Conclusions: Reliability of GOSLON and MHB scoring using intra-oral 3D scans was superior to plaster models. Participants and their parents preferred the experience of the intra-oral 3D scan.
This study supports the replacement of conventional impressions with intra-oral 3D in longitudinal evaluations of the outcomes of cleft care.