Supracrestal Socket Shield Technique in Anterior Maxilla. A Case Series
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: Supracrestal SST.
- Who it may be relevant to
- Registry conditions: Immediate Dental Implant Placement, Anterior Maxilla. Basic parameters: 21 years — 55 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
- Egypt
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Supracrestal Socket Shield Technique in Anterior Maxilla. A Case Report.
Overview
Post-extraction labio-palatal ridge collapse is a significant challenge in restorative and implant dentistry particularly in anterior maxilla. Following tooth extraction, marked dimensional alveolar ridge changes occur. The buccal plate of bone in the anterior zone is primarily composed of bundle bone, a tooth dependent structure that derives its blood supply from the periodontal ligament (PDL). The PDL loss after tooth extraction results in rapid resorption of the bundle bone, leading to horizontal and vertical ridge reduction (Araújo and Lindhe, 2005, Schropp et al., 2003). Studies have shown that 50% of ridge width reduction occurs within 12 months, with two thirds of this reduction occurring within the first 3 months (Schropp et al., 2003). Moreover, the labial plate thickness in the anterior maxilla is frequently thinner than 1 mm in the majority of cases (Huynh-Ba et al., 2010). The high incidence of mid-facial recession and soft tissue volume loss is attributed to those biological events. Although IIP has become increasingly popular due to its short treatment time, it doesn't prevent physiological remodeling associated with bundle bone resorption (Araújo and Lindhe, 2005). Consequently, soft tissue collapse and midfacial recession remain common complications, especially in thin periodontal phenotypes (Chappuis et al., 2013, Cosyn et al., 2012). In order to overcome the inevitable consequences of tooth extraction, a variety of ridge preservation techniques were proposed in the literature including; flapless implant placement, bone grafting, soft tissue augmentation procedures, immediate provisionalization, a more palatal orientation of the implant in the socket and the socket shield technique.
Detailed description
The Supracrestal Socket Shield Technique is a modification of the original Socket Shield Technique used in implant dentistry to preserve buccal bone and gingival architecture after tooth extraction, especially in the esthetic zone (anterior maxilla). The key difference is that a small portion of the buccal root fragment is intentionally left slightly above the crestal bone level (supracrestal) to better support the soft tissue contour.
Interventions
- Procedure Supracrestal SST
Supracrestal Socket Shield Technique (SSST) 1\. Concept and Biological Principle The technique is based on partial extraction therapy. Normally, after extraction: The periodontal ligament (PDL) is lost The bundle bone of the buccal plate resorbs This leads to buccal bone collapse and gingival recession In SSST: The buccal root fragment is preserved The PDL and vascular supply remain intact The bundle bone does not resorb This maintains ridge contour and papilla stability The supracrestal e
Primary outcome measures
- Midfacial margin changes [Time frame: 6 months]
Eligibility criteria
Inclusion criteria
- Patients who have a single bounded non-restorable maxillary anterior tooth with opposing natural dentition with no periapical pathosis.
- Adults above the age of 21.
- Good oral hygiene.
- Patient accepts to provide informed consent.
- Thin intact labial plate of bone (1 mm or less), assessed by CBCT.
- Intact gingival tissue with at least 2 mm keratinized tissue.
- Teeth with intact labial root surfaces.
- Minimum of 3-4 mm of apical bone for primary stability
Exclusion Criteria: • Smokers.
- Pregnant and lactating females.
- Medically compromised patients.
- Patients with untreated active periodontal diseases.
- Patients with active infection related to the implant site
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Allocation
- N/A
- Model
- Single group
- Masking
- Open label
- Primary purpose
- Treatment
Study locations
Egypt · 1 center
- International dental continuing education — Cairo
Identifiers
NCT: NCT07473921 · IDCE-111032026