The Preliminary Application of Socket-shield Technique in Orthodontic Extraction and Fixed Orthodontic Treatment

NCT06510621 | Completed DMC

• 1 other identifier: 201827
• Study Type: interventional
• Target: 26
• Locations: 1 country
• Sites: 1

Brief Summary

Background This study was conducted to investigate the clinical efficacy of Socket-Shield Technique on the first premolar bone preservation in Orthodontic Extraction Treatment. Methods patients were underwent Orthodontic Extraction Treatment in the First Affiliated Hospital of Guangzhou Medical University were enrolled. Extracted teeth were paired and randomly allocated into two groups: test group (Socket-Shield Technique) and control group. Cone beam computerized tomography were utilized to access the horizontal resorption and vertical resorption at 1mm, 3mm and 5mm from a reference plane of alveolar crest, as well as tooth movement rate at four time-points: before tooth extraction (T0), three months after tooth extraction (T1), the juncture socket-shield was removed (T2) and three months after socket-shield removal (T3).

Conditions

Immediate Dental Implant Loading

Keywords

Socket-Shield Technique; Bone preservation; First premolar extraction; Orthodontics

Outcome Measures

Primary Outcomes (2)

• Vertical alveolar bone loss

  Cone beam computerized tomography were utilized to access the vertical resorption at 1mm, 3mm and 5mm from a reference plane of alveolar crest

  0 weeks, 3 months, 6 months and 9 months

• Horizontal alveolar bone loss

  Cone beam computerized tomography were utilized to access the horizontal resorption at 1mm, 3mm and 5mm from a reference plane of alveolar crest

  0 weeks, 3 months, 6 months and 9 months

Secondary Outcomes (1)

• Tooth movement rate

  3 months, 6 months and 9 months

Study Arms (2)

Socket-Shield Technique

EXPERIMENTAL

Cut the tooth crown; divided along the long axis; trim the socket shield. Finally, the socket-shield was removed by minimally invasive forceps when the adjacent tooth moved proximate to the shield during the process of closing orthodontic gap.

Procedure: Socket-Shield Technique

non-Socket-Shield Technique

NO INTERVENTION

A high-speed turbine was used to cut the tooth crown 1.5-2 mm from the buccal gingival margin. The tooth was then divided along the long axis, approximately 2 mm from the buccal side. The palatal roots were removed using minimally invasive elevation and extraction forceps. Next, the buccal socket-shield was trimmed to approximately 4-6 mm in height (1 mm from the buccal gingival margin), 3-4 mm in width, and 1-1.5 mm in thickness. The trimming process required with clear visualization of the shield and calibration by periodontal probe. Finally, the socket-shield was removed immediately

Interventions

Socket-Shield Technique PROCEDURE

A high-speed turbine was used to cut the tooth crown 1.5-2 mm from the buccal gingival margin. The tooth was then divided along the long axis, approximately 2 mm from the buccal side(Figure 1c, 1d). The palatal roots were removed using minimally invasive elevation and extraction forceps. Next, the buccal socket-shield was trimmed to approximately 4-6 mm in height (1 mm from the buccal gingival margin)\[18\], 3-4 mm in width, and 1-1.5 mm in thickness\[19,20\]. The trimming process required with clear visualization of the shield and calibration by periodontal probe. Finally, the socket-shield was removed by minimally invasive forceps when the adjacent tooth moved proximate to the shield during the process of closing orthodontic gap.

Socket-Shield Technique

Eligibility Criteria

• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

• had an orthodontic treatment plan involving the extraction of symmetrical left and right first premolars;
• had maxillary protrusion or bimaxillary protrusion with crowding within 4mm;
• had permanent dentition;
• had good oral hygiene and had no periodontitis;
• agreed to the orthodontic extraction treatment plan and signed the treatment informed consent form and the experimental informed consent form.

You may not qualify if:

• underlying diseases such as hypertension, heart disease, diabetes, osteoporosis, or hyperthyroidism;
• infection in the extraction area;
• dental root caries in the extraction area;
• gingival recession on the buccal aspect of the extraction area;
• refused to undergo SST treatments;
• pregnancy or lactation.

Sponsors & Collaborators

• The First Affiliated Hospital of Guangzhou Medical University: lead

Study Sites (1)

The First Affiliated Hospital of Guangzhou Medical University

Guangzhou, Guangdong, 510120, China

Location

Related Publications (1)

• Zhang Y, Ji Z, Lin L, Ye H, Ji J. The socket-shield technique in orthodontics: a method for alveolar ridge preservation. Oral Maxillofac Surg. 2026 Jan 10;30(1):16. doi: 10.1007/s10006-025-01501-9.

  PMID: 41514150 DERIVED

MeSH Terms

Interventions

Immediate Dental Implant Loading

Intervention Hierarchy (Ancestors)

Dental Implantation, Endosseous; Dental Implantation; Oral Surgical Procedures, Preprosthetic; Oral Surgical Procedures; Surgical Procedures, Operative; Prosthesis Implantation; Dentistry; Prosthodontics

Study Officials

• Jianxin Ji, DDS

  The First Affiliated Hospital of Guangzhou Medical University

  STUDY CHAIR

• Yuhang Zhang, MS

  The First Affiliated Hospital of Guangzhou Medical University

  PRINCIPAL INVESTIGATOR

• Zhe Ji, MS

  The First Affiliated Hospital of Guangzhou Medical University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: SEQUENTIAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Director, Department of Stomatology, Principal Investigator, Clinical Professor

Study Record Dates

• First Submitted: July 8, 2024
• First Posted: July 19, 2024
• Study Start: January 2, 2024
• Primary Completion: September 2, 2024
• Study Completion: October 1, 2024
• Last Updated: November 13, 2024

Record last verified: 2024-11

Data Sharing

• IPD Sharing: Will not share

Locations

CN (1)