"Pontic-shield" Technique in Alveolar Ridge Preservation
Study Details
Study Description
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.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
N/A |
Detailed Description
A three-arm randomized clinical study will be conducted:
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Group 1 (study group): Ridge preservation with "Pontic-shield" technique.
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Group 2 (positive control): Ridge preservation with deproteinized bovine bone and porcine collagen membrane after tooth extraction.
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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.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Experimental: Study group "Pontic-shield" will be performed as ridge preservation technique. |
Procedure: "Pontic-shield" technique
A 1mm thick fragment of the vestibular aspect of the root will remain after extraction (partial extraction)
Other Names:
|
| Active Comparator: Positive control (ridge preservation) Deproteinized bovine bone and porcine collagen membrane will be placed after tooth extraction. |
Procedure: Alveolar ridge preservation
Particulate deproteinized bovine bone and porcine collagen membrane will be placed after tooth extraction
|
| No Intervention: Negative control (fresh socket) No intervention will be performed after tooth extraction. Blood clot will be maintained after extraction. |
Outcome Measures
Primary Outcome Measures
- 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 Outcome Measures
- 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)
Eligibility Criteria
Criteria
Inclusion Criteria:
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Patient from 18 to 80 years old
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Patients who sign the informed consent
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Need to perform extraction from second premolar to second premolar in maxilla and mandible
Exclusion Criteria:
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Tobacco consumption (more than 10 cigarettes per day)
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Severe systemic disease ( ASA III or IV - American Society of Anaesthesiology)
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Drug use that could interfere with alveolar bone healing
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Active periodontal disease
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Acute or chronic apical pathology of the tooth
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Luis Miguel Sáez-Alcaide | Madrid | Spain | 28011 |
Sponsors and Collaborators
- Universidad Complutense de Madrid
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
- Araújo MG, Lindhe J. Dimensional ridge alterations following tooth extraction. An experimental study in the dog. J Clin Periodontol. 2005 Feb;32(2):212-8.
- Avila-Ortiz G, Chambrone L, Vignoletti F. Effect of alveolar ridge preservation interventions following tooth extraction: A systematic review and meta-analysis. J Clin Periodontol. 2019 Jun;46 Suppl 21:195-223. doi: 10.1111/jcpe.13057. Erratum in: J Clin Periodontol. 2020 Jan;47(1):129.
- Canullo L, Del Fabbro M, Khijmatgar S, Panda S, Ravidà A, Tommasato G, Sculean A, Pesce P. Dimensional and histomorphometric evaluation of biomaterials used for alveolar ridge preservation: a systematic review and network meta-analysis. Clin Oral Investig. 2022 Jan;26(1):141-158. doi: 10.1007/s00784-021-04248-1. Epub 2021 Nov 26. Review.
- Hürzeler MB, Zuhr O, Schupbach P, Rebele SF, Emmanouilidis N, Fickl S. The socket-shield technique: a proof-of-principle report. J Clin Periodontol. 2010 Sep;37(9):855-62. doi: 10.1111/j.1600-051X.2010.01595.x.
- Sáez-Alcaide LM, González Fernández-Tresguerres F, Cortés-Bretón Brinkmann J, Segura-Mori L, Iglesias-Velázquez O, Pérez-González F, López-Pintor RM, Torres García-Denche J. Socket shield technique: A systematic review of human studies. Ann Anat. 2021 Nov;238:151779. doi: 10.1016/j.aanat.2021.151779. Epub 2021 Jun 1. Review.
- 21/028-EC_X