Safety of Coronectomy vs Excision of Wisdom Teeth

NCT00752284 | Completed

• 1 other identifier: UW 06-218 T/1243
• Study Type: interventional
• Target: 349
• Locations: 1 country
• Sites: 1

Brief Summary

The purpose of this study is to compare the surgical complications and neurosensory disturbance of coronectomy and conventional excision of wisdom teeth with roots in close proximity to inferior alveolar nerve. Hypothesis: Coronectomy of wisdom tooth can reduce the chance of injury to the inferior alveolar nerve in cases of radiographic proximity to the roots when compared with conventional method of surgical removal of wisdom teeth, and there is no difference in other surgical morbidities.

Conditions

Pain; Infection; Alveolar Nerve Injury

Keywords

coronectomy; neurosensory deficit; third molar surgery

Outcome Measures

Primary Outcomes (1)

• The incidence of neurosensory disturbance, infection or dry socket of control group and coronectomy group

  1 week-2 years

Secondary Outcomes (1)

• Migration rate of root in coronectomy group

  1 week - 2 years

Study Arms (2)

A

EXPERIMENTAL

Coronectomy Group. Removal of crown of lower wisdom tooth, trim down root below crestal bone and primary closure

Procedure: Coronectomy

B

ACTIVE COMPARATOR

Control Group: total excision of lower wisdom tooth

Procedure: Total Excision

Interventions

Coronectomy PROCEDURE

Coronectomy Group. Removal of crown of lower wisdom tooth, trim down root below crestal bone and primary closure

Also known as: Coronectomy Group

A

Total Excision PROCEDURE

Total excision of lower third molar

B

Eligibility Criteria

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

You may qualify if:

• Radiographically the wisdom tooth root is touching or overlapping with the superior cortical line of inferior alveolar nerve or showing one or more of the following signs:
• darkening of root
• abrupt narrowing of root
• interruption and loss of the white line of IAN canal
• displacement of the IAN canal by the roots
• Abrupt narrowing of one or both of the canal white lin

You may not qualify if:

• Wisdom tooth roots not touching the IAN cortical lines
• Wisdom tooth presented with apical pathology
• Pre-existing neurosensory deficit of IAN
• Systemic condition predisposing local infection: diabetes, AIDS, concurrent chemotherapy.
• Local factors predisposing infection: metabolic bone diseases e.g. fibrous dysplasia, history of radiotherapy on mandible

Sponsors & Collaborators

• The University of Hong Kong: lead

Study Sites (1)

Prince Philip Dental Hospital

Hong Kong, China

Location

MeSH Terms

Conditions

Pain; Infections

Condition Hierarchy (Ancestors)

Neurologic Manifestations; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Officials

• Yiu Yan Leung, BDS

  U Hong Kong

  PRINCIPAL INVESTIGATOR

• Lim Kwong Cheung, BDS, PhD

  U Hong Kong

  STUDY DIRECTOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER

Study Record Dates

• First Submitted: September 1, 2008
• First Posted: September 15, 2008
• Study Start: June 1, 2006
• Primary Completion: August 1, 2008
• Study Completion: August 1, 2008
• Last Updated: December 8, 2008

Record last verified: 2008-09

Locations

CN (1)