Digital Occlusal Analysis and Bite Force Evaluation of Primary Molars Restored With Zirconia Crowns Using T-Scan
Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age6-9
SponsorCairo University
About this trial
The goal of this observational study is to evaluate the adaptation of occlusion and bite force after zirconia crown restoration in children with pulp-treated primary molars. The main questions it aims to answer are:
How does occlusion adapt after placement of zirconia crowns?
Does bite force change following crown restoration?
Participants will:
Undergo routine pulp treatment and restoration of primary molars with zirconia crowns.
Have bite force and occlusal contacts measured using the T-Scan digital occlusal analysis system before and after crown placement.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Children aged 6 to 9 years.
Both boys and girls can participate.
A pulp-treated primary molar (pulpotomy) that is healthy and shows no pain, no swelling, no mobility, and no radiographic problems (such as internal resorption or infection).
The lower first permanent molar must be erupted.
Disqualifiers
Children with medical conditions or who are uncooperative during dental care.
Children with parafunctional habits, such as teeth grinding (bruxism), thumb-sucking, or other habits that may affect bite-force measurements.
Teeth that are close to falling out, have severe root resorption, or need extraction.
Teeth with deep cavities below the gum line that prevent proper crown placement.
Trial design
Design model
Single group
Treatments tested in this trial
Pulp Therapy and Zirconia Crown Restoration of Primary Molars with T-Scan Occlusal Analysis
Procedure/SurgeryParticipants will receive pulp therapy followed by restoration of primary molars with prefabricated zirconia crowns according to standard pediatric dental protocols. Occlusal function and bite force will be assessed using the T-Scan digital occlusal analysis system at baseline, and at 2 and 4 weeks post-restoration. This intervention combines a therapeutic dental procedure with objective, instrumented measurement of occlusal adaptation, allowing participants to act as their own controls. Follow-up visits will monitor crown fit, occlusal contacts, and bite force changes over time.
Treatment groups
11 Participants
are divided into 1 treatment groupGroup A: Zirconia Crown Restoration of Pulp-Treated Primary MolarsExperimental treatment 1 intervention
Trial outcomes
Primary outcomes
1
Mean Bite Force
Bite force will be measured using the T-Scan digital occlusal analysis system. Participants will bite on the sensor in a standardized position, and the system will record bite force as a percentage of total occlusal force distributed among teeth. This measure reflects functional adaptation of occlusion after crown placement.
Time frame
Baseline (pre-operative), immediate post-operative, 2 weeks post-operative, 4 weeks post-operativeSecondary outcomes
1
Vertical Dimension
Vertical dimension will be measured using a digital vernier caliper. Before local anesthesia, the vertical distance (overbite) at the cuspid will be measured, with the child seated upright in maximum intercuspal position. The most prominent incisal edge of the maxillary cuspid will be marked, and the vertical distance to the mandibular cuspid measured. Measurements will be recorded at pre-operative, immediate post-operative, and 1, 2, and 4 weeks post-operative to assess changes in occlusion following operative zirconia crown placement.
Time frame
Baseline (pre-operative), immediate post-operative, 2 weeks post-operative, 4 weeks post-operative2
Parental Rating of Esthetic Satisfaction
Description: Parents will rate the appearance of the treated teeth using a 5-point Likert scale (1 = very dissatisfied, 5 = very satisfied). This measure assesses parental satisfaction with the esthetics of the operative zirconia crown placement at each follow-up
Time frame
immediate post-operative and 4 weeks post-operative3
Parental Rating of Treatment Impact on Child
Parents will complete a structured questionnaire assessing the perceived impact of zirconia crown placement on their child's oral health, appearance, and psychosocial comfort. The questionnaire consists of 5 items, each scored on a 5-point Likert scale, where: 1 = Not at all satisfied 5 = Very much satisfied Items include: Oral health of the child improved after crowns Parents' concern about appearance before the crowns Child avoided smiling before the crowns Child smiled after crowns Crowns improved the appearance of the child's teeth Higher scores indicate greater positive impact of the treatment on the child's oral health and well-being
Time frame
immediate post-operative and 4 weeks post-operativeLocations
1Map coordinates are unavailable for these locations. Locations are shown below instead.
Faculty of Dentistry, Cairo University Status unavailable 12613, Cairo, Giza Governorate
Egypt
EgyptSponsors and contacts
Click on the lead sponsor to view all of their trials.
Source ClinicalTrials.gov
This trial is not recruiting at the moment. You can still explore other options: