digital PAR scoring 01
Research type
Research Study
Full title
A single-site self-controlled comparative study of conventional versus digital Peer Assessment Rating (PAR) using the Carestream (CS) 3600 intraoral scanner in orthodontic patients
IRAS ID
230630
Contact name
Sana Luqmani
Contact email
Sponsor organisation
King's College London
Clinicaltrials.gov Identifier
Duration of Study in the UK
0 years, 0 months, 31 days
Research summary
Peer Assessment Rating (PAR) is a way of quantifying the severity of misalignment of a patient's teeth is by scoring their orthodontic study models. Traditionally, PAR scoring is performed manually on plaster casts by a trained individual. The plaster casts require storage and scoring can be time consuming and expensive. Recently, intra oral scanners have become available to produce digital study models. A software can be used to calculate PAR scores digitally, which is quicker and more convenient.
Aims: The aim is to compare digital PAR scoring using the Carestream (CS) 3600 intraoral scanner with conventional PAR scoring.
Method: The sample (n=66) will consist of randomly selected patients attending for orthodontic appointments at Kingston Hospital, excluding patients with fixed appliances or bonded components. The main care provider will give patients/parents an information leaflet at their first appointment and a consent form at the following visit (>1 day later). If patients/parents require more time to consent they will be re-appointed in a further >1 days. Consenting patients will receive conventional impressions and intraoral scans. The scanning device is a camera the size of a large pen and is already being used routinely in dentistry. It does not emit any form of radiation. Scans take approximately 2-5 minutes and are entirely painless. Plaster casts poured from the impressions will also be scanned to produce indirect digital models. PAR scoring will be performed by one investigator on all three models (plaster casts, direct and indirect digital models). Digital scores will be calculated using the software "CS Model". A second investigator will record the time taken to perform scans and impressions and completion of digital and conventional scoring. Immediately after the clinical procedure patients will be given a questionnaire evaluating their preference. There will be no change to the patient's care pathway.REC name
North West - Preston Research Ethics Committee
REC reference
18/NW/0586
Date of REC Opinion
15 Aug 2018
REC opinion
Favourable Opinion