Dental Pulp Regeneration Clinical Trial
Official title:
Comparison of Tissue Formation in Regenerative Endodontic Procedures and Apexification
The purpose of our study is to characterize the composition of the hard and soft tissues present after regenerative endodontic procedures in root canals of teeth previously diagnosed with the need for extraction for orthodontic treatment and incomplete root formation. Although the protocol addressed in this study is currently being used in clinical practice, there are no prospective clinical trials investigating its efficacy in stimulating continued root development and the nature of the newly formed tissues.
Status | Withdrawn |
Enrollment | 0 |
Est. completion date | October 2015 |
Est. primary completion date | October 2015 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Both |
Age group | 9 Years to 18 Years |
Eligibility |
Inclusion Criteria: Patient Inclusion Criteria: - Children ages 9-18 with bilateral premolars with incomplete root development scheduled for extraction for orthodontic reasons. - Children who seem to be cooperative with dental treatment and able to indicate willingness to obtain treatment and participate in the study and who are capable of verbally expressing dissent. - Parents who express understanding of study treatments and consent to treatment for their child of the regenerative procedure prior to the tooth extraction for orthodontic reasons . - Healthy patients (ASA Class I or II physical status) with no systemic health problems that may interfere with healing and cell growth. Tooth inclusion criteria: - Permanent premolar teeth with immature root development and healthy pulps scheduled for extraction due to orthodontic requirements. - Clinically confirmed teeth with good periodontal health assessed by periodontal probing depths of less than 4mm. Exclusion Criteria: Patient Exclusion Criteria: - Parents and patients unable to give consent or express dissent. - Patients who are unwilling to undergo the research and orthodontic dental treatment. - Patients affected by tempromandibular joint disorders. - Patients affected by known orofacial pain disorders. - Patients with ASA Class III or IV physical status (Immuno-compromised patients including patients who self-report that they are an HIV carrier, undergoing steroid therapy or chemotherapy, or those who self-report with genetic or systemic diseases that could result in reduced immune response). Tooth Exclusion Criteria: - Teeth with vertical cracks that extend below the cemento-enamel junction. - Teeth that cannot be isolated using a rubber dam. - Teeth with non-odontogenic pathology. - Teeth whose apices are fully developed, as determined radiographically and correlated with dental age of patient. |
Allocation: Non-Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention
Country | Name | City | State |
---|---|---|---|
United States | University of Texas Health Science Center | San Antonio | Texas |
Lead Sponsor | Collaborator |
---|---|
Kenneth Hargreaves |
United States,
Thibodeau B. Case report: pulp revascularization of a necrotic, infected, immature, permanent tooth. Pediatr Dent. 2009 Mar-Apr;31(2):145-8. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Histological identification of the mineralized tissue at the apical third of the root and the adherent cellular layer. | Although we predict histological identification of dentin/odontoblasts (due to the proximity of the apical papilla and associated SCAP stem cells) using our scanning laser confocal microscopy system, our methods are sufficiently sensitive to permit identification of bone/osteoblasts and cementum/cementoblasts as alternative hypotheses. | Following tooth extraction at the 3 month followup visit. Correlation of all data collected from the extracted teeth will occur at the completion of the study at year 5. | No |
Secondary | Whether stem cells enter the canal space when bleeding is stimulated through manipulation of the apical papilla. | This secondary outcome measure will be conducted by measuring markers of stem cells prior to and after the formation of the blood clot. We predict that evoking bleeding into the root canal system will increase the delivery of mesenchymal stem cells. | Canal bleeding is evoked during the second treatment visit thirty days following the first treatment. Blood collected by paper points will be saved till the end of the study (year 5) for analysis. | No |
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