Bone Loss, Bone Resorption, Tooth Extraction Status Nos
Conditions
Keywords
Tooth extraction, Alveolar ridge preservation, Partial extraction therapies, Bone resorption
Brief summary
Alveolar bone resorption after dental extraction frequently leads to situations in which long-term function and esthetic success of rehabilitations with dental implants is a challenge. Pontic-shield has been described as an alternative technique to maintain alveolar ridge after tooth extraction. The aim of this study is to analyze the effectiveness of Pontic-shield technique in alveolar ridge preservation comparing to fresh socket and ridge preservation using deproteinized bovine bone and a porcine collagen membrane.
Detailed description
A three-arm randomized clinical study will be conducted: * Group 1 (study group): Ridge preservation with Pontic-shield technique. * Group 2 (positive control): Ridge preservation with deproteinized bovine bone and porcine collagen membrane after tooth extraction. * Group 3 (negative control): Tooth extraction only (fresh socket). A cone-beam computed tomography will be performed prior to tooth extraction and 4 months postoperative. Radiographic changes between before and after intervention will be evaluated to asses the effectiveness of Pontic-shield technique.
Interventions
PROCEDUREPontic-shield technique
A 1mm thick fragment of the vestibular aspect of the root will remain after extraction (partial extraction)
PROCEDUREAlveolar ridge preservation
Particulate deproteinized bovine bone and porcine collagen membrane will be placed after tooth extraction
Sponsors
Universidad Complutense de Madrid
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Intervention model description
Parallel three-arm randomized clinical study
Eligibility
Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
Yes
Inclusion criteria
* Patient from 18 to 80 years old * Patients who sign the informed consent * Need to perform extraction from second premolar to second premolar in maxilla and mandible
Exclusion criteria
* Tobacco consumption (more than 10 cigarettes per day) * Severe systemic disease ( ASA III or IV - American Society of Anaesthesiology) * Drug use that could interfere with alveolar bone healing * Active periodontal disease * Acute or chronic apical pathology of the tooth
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Bone resorption | From the day of the extraction to 4 months after | Radiographic changes between preoperative (prior to tooth extraction) and postoperative (4 months after intervention) will be analyzed. This variation will be assessed by measuring changes in width and height (in millimeters) of the socket by superimposition of CBCT before and after the intervention. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Satisfaction assessed by visual analogue scale (VAS) | From the day of the surgical procedure to the seventh-day | Postoperative pain with visual analogue scale (VAS) from 0 (no pain) to 10 (maximum pain) |
Countries
Spain
Outcome results
None listed