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Clinical Study on the Application of Piezosurgery, Bone Lid Technique and Medical Collagen Sponge in Bone Healing After Extraction of Impacted Teeth

Clinical Study on the Application of Piezosurgery, Bone Lid Technique and Medical Collagen Sponge in Bone Healing After Extraction of Impacted Teeth

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600121097
Enrollment
Unknown
Registered
2026-03-25
Start date
2021-09-04
Completion date
Unknown
Last updated
2026-03-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Impacted Teeth

Interventions

Experimental Group:Piezosurgery "Lid-flap" Technique for Tooth Extraction combined with Medical Collagen Sponge Implantation
Control Group:Traditional Turbine Drill Tooth Extraction

Sponsors

The Affiliated Stomatological Hospital of Nanchang University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
12 Years to 35 Years

Inclusion criteria

Inclusion criteria: Aged 12–35 years old; in terms of general health status, only patients with ASA physical status I (no physiological or organic dysfunction) and ASA physical status II (mild controlled systemic disease) were enrolled. Preoperative cone-beam computed tomography (CBCT) confirmed that the teeth were completely impacted within bone, located in the middle of the jaw or deviated to the labiobuccal side, with a buccal bone plate thickness = 3 mm. For mandibular third molars, only those classified as Pell-Gregory low impaction were included. Patients who had not received periodontal treatment or had completed periodontal treatment with stable conditions were eligible, with the requirements of periodontal probing depth (PD) = 3 mm, no active periodontal inflammation, no significant alveolar bone loss, and plaque control record (PCR) < 20%.

Exclusion criteria

Exclusion criteria: Patients with uncontrolled systemic diseases such as heart disease, hypertension, hematological disorders, and diabetes mellitus; female patients during menstruation; patients with a history of acute inflammation before surgery, or oral health problems including active periodontitis and severe alveolar bone loss; patients allergic to drugs or collagen products; patients unable to cooperate with intraoperative surgical procedures and postoperative follow-up assessments; patients with a significant smoking habit (more than 20 cigarettes per day); and pregnant women.

Design outcomes

Primary

MeasureTime frame
bone density;new bone height;

Secondary

MeasureTime frame
postoperative pain;postoperative swelling;limitations in mouth opening;

Countries

China

Contacts

Public ContactYujiang Wang

The Affiliated Stomatological Hospital of Nanchang University

273412804@qq.com+86 137 6701 1216

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Apr 4, 2026