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Postoperative Bite Force After Bioflx and Zirconia Crowns in Children

Postoperative Bite Force in Children Following Full-Crown Restoration Under General Anesthesia: A Randomized Comparative Study of Bioflx and Zirconia Crowns

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07825103
Enrollment
30
Registered
2026-09-17
Start date
2026-10-01
Completion date
2027-01-01
Last updated
2026-09-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bite Force, Masseter Muscle, Primary Molars, Zirconia Crowns

Keywords

bite force, postoperative bite force, Bioflx crown, zirconia crown, primary molar, general anethesia

Brief summary

This randomized clinical trial aims to compare postoperative bite force following full-crown restoration with preformed Bioflx and zirconia crowns in children undergoing comprehensive dental treatment under general anesthesia. Children aged 4-7 years requiring full-coverage restoration of primary molars will be randomly allocated to receive either Bioflx or zirconia crowns. Occlusal bite force will be assessed before treatment and at predefined postoperative follow-up time points using a digital occlusal analysis system. The study will evaluate changes in occlusal function following placement of the two types of pediatric full-coverage crowns.

Detailed description

This randomized clinical trial aims to compare postoperative occlusal bite force following full-crown restoration of primary molars with preformed Bioflx and zirconia crowns in children undergoing comprehensive dental treatment under general anesthesia. Children aged 4-7 years who require full-coverage crown restoration of primary molars will be randomly allocated to receive either a preformed Bioflx crown or a zirconia crown. The crowns will be fitted and cemented according to the respective manufacturers' recommendations, and the final occlusion will be evaluated following crown placement. Occlusal bite force will be assessed before treatment and at predetermined postoperative follow-up time points using a digital occlusal analysis system. The study will compare changes in bite force following restoration with Bioflx and zirconia crowns to evaluate the recovery of occlusal function after comprehensive dental treatment under general anesthesia.

Interventions

Preformed Bioflx pediatric crowns will be used for full-coverage restoration of indicated primary molars in children undergoing comprehensive dental treatment under general anesthesia.

Preformed zirconia pediatric crowns will be used for full-coverage restoration of indicated primary molars in children undergoing comprehensive dental treatment under general anesthesia.

Sponsors

Tanta University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
4 Years to 7 Years
Healthy volunteers
No

Inclusion criteria

* Children aged 4-7 years. * Children requiring comprehensive dental treatment under general anesthesia. * Children requiring full-coverage restoration of one or more primary molars with a preformed pediatric crown. * Primary molars with sufficient remaining tooth structure to support full-crown restoration. * Children with a generally healthy medical status and suitable for treatment under general anesthesia. * Parents or legal guardians willing to provide written informed consent for participation in the study.

Exclusion criteria

* Children with systemic diseases or medical conditions that may affect oral health, occlusal function, or the ability to undergo general anesthesia. * Children with craniofacial anomalies or developmental conditions that may significantly affect occlusion or bite force. * Primary molars with inadequate remaining tooth structure for full-crown restoration. * Teeth with advanced pathological root resorption or other conditions contraindicating crown restoration. * Children with significant parafunctional habits, such as severe bruxism, that may affect bite-force measurements.

Design outcomes

Primary

MeasureTime frameDescription
Change in Occlusal Bite ForceBaseline (before crown placement), immediately after crown cementation, one and three months after treatmentChange in occlusal bite force following full-crown restoration with preformed Bioflx or zirconia crowns, measured using a digital occlusal analysis system. Bite force will be expressed as the percentage (%) of total occlusal force contributed by the treated/restored primary molar(s).

Secondary

MeasureTime frameDescription
Occlusal ContactsBaseline, immediately after crown placement, and 1 and 3 month after treatmentThe number and distribution of occlusal contacts, including the presence or absence of premature occlusal contacts (number of patients/teeth with premature contacts), will be assessed using digital intraoral scanning and digital occlusal analysis

Countries

Egypt

Contacts

CONTACTshaimaa eldesouky, assistant professor
shaimaaeldesouky@dent.tanta.edu.eg01008994242

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 19, 2026