IADR Abstract Archives
A Prospective, Single-Blind, Crossover Clinical Trial to Assess the Outcomes of Computer-Engineered Complete Dentures Using Impressions and Intra-Oral Scans of the Edentulous Arches.
Objectives: 1. To compare the clinical outcomes for computer-engineered complete dentures made with conventional impressions and intra-oral scans of the edentulous arches.
2. To compare the patient satisfaction with complete dentures made using both workflows.
The null hypothesis is that there is no difference between the assessor- and patient-related outcomes of both groups of digitally-fabricated dentures.
Methods: The trial protocol is centred around the following PICO question. Edentulous patients attending the Dublin Dental University Hospital for prosthetic treatment (population) receive two sets of computer-engineered complete dentures (intervention), fabricated using conventional impressions and from intra-oral scans of the edentulous arches (comparison). Blinding of the participant is accomplished by random delivery of the prostheses. Dentures are clinically evaluated by two assessors at insertion, and patient satisfaction is measured at multiple timepoints (outcomes). The assessor-determined clinical evaluation and patient-related questionnaires are based on established criteria and validated Likert 5-point scales.
Results: A unique intra-oral scanning strategy for edentulous arches was developed. Active recruitment of the participants commenced following ethical approval. This prospective trial is currently ongoing, with treatment in progress. Complete dentures fabricated following both conventional impression and intra-oral scanning pathways have been fitted, with all deemed clinically acceptable to date. Preliminary scores from patient-determined questionnaires indicate high patient satisfaction with both sets of complete dentures, and an early preference for the prostheses fabricated from intra-oral scans.
Conclusions: Clinically satisfactory computer-engineered complete dentures may be fabricated using both protocols (conventional and digital impressions).
Independent clinical evaluation scores and patient-related scores indicate satisfactory outcomes with both prostheses.
2. To compare the patient satisfaction with complete dentures made using both workflows.
The null hypothesis is that there is no difference between the assessor- and patient-related outcomes of both groups of digitally-fabricated dentures.
Methods: The trial protocol is centred around the following PICO question. Edentulous patients attending the Dublin Dental University Hospital for prosthetic treatment (population) receive two sets of computer-engineered complete dentures (intervention), fabricated using conventional impressions and from intra-oral scans of the edentulous arches (comparison). Blinding of the participant is accomplished by random delivery of the prostheses. Dentures are clinically evaluated by two assessors at insertion, and patient satisfaction is measured at multiple timepoints (outcomes). The assessor-determined clinical evaluation and patient-related questionnaires are based on established criteria and validated Likert 5-point scales.
Results: A unique intra-oral scanning strategy for edentulous arches was developed. Active recruitment of the participants commenced following ethical approval. This prospective trial is currently ongoing, with treatment in progress. Complete dentures fabricated following both conventional impression and intra-oral scanning pathways have been fitted, with all deemed clinically acceptable to date. Preliminary scores from patient-determined questionnaires indicate high patient satisfaction with both sets of complete dentures, and an early preference for the prostheses fabricated from intra-oral scans.
Conclusions: Clinically satisfactory computer-engineered complete dentures may be fabricated using both protocols (conventional and digital impressions).
Independent clinical evaluation scores and patient-related scores indicate satisfactory outcomes with both prostheses.