"Pontic-shield" Technique in Alveolar Ridge Preservation
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: "Pontic-shield" technique, Alveolar ridge preservation.
- Who it may be relevant to
- Registry conditions: Tooth Extraction Status Nos, Bone Loss, Bone Resorption. Basic parameters: 18 years — 80 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Spain
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Effectiveness of "Pontic-shield" Technique in Alveolar Ridge Preservation: A Randomized Controlled Trial
Overview
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
- Procedure "Pontic-shield" technique
A 1mm thick fragment of the vestibular aspect of the root will remain after extraction (partial extraction) - Procedure Alveolar ridge preservation
Particulate deproteinized bovine bone and porcine collagen membrane will be placed after tooth extraction
Primary outcome measures
- Bone resorption [Time frame: From the day of the extraction to 4 months after]
Secondary outcome measures (1)
- Satisfaction assessed by visual analogue scale (VAS) [Time frame: From the day of the surgical procedure to the seventh-day]
Eligibility criteria
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
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Double blind
- Primary purpose
- Treatment
Study locations
Spain · 1 center
- Luis Miguel Sáez-Alcaide — Madrid
Publications
- 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. PMID 30623987
- Canullo L, Del Fabbro M, Khijmatgar S, Panda S, Ravida 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. PMID 34826029
- Saez-Alcaide LM, Gonzalez Fernandez-Tresguerres F, Cortes-Breton Brinkmann J, Segura-Mori L, Iglesias-Velazquez O, Perez-Gonzalez F, Lopez-Pintor RM, Torres Garcia-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. PMID 34087383
- Hurzeler 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. PMID 20712701
- Araujo MG, Lindhe J. Dimensional ridge alterations following tooth extraction. An experimental study in the dog. J Clin Periodontol. 2005 Feb;32(2):212-8. doi: 10.1111/j.1600-051X.2005.00642.x. PMID 15691354
Identifiers
NCT: NCT05240417 · 21/028-EC_X