Now Available: Final Rule for FDAAA 801 and NIH Policy on Clinical Trial Reporting

Dentures and Dental Implants in Treating Patients Undergoing Surgery for Mouth Cancer

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Jonsson Comprehensive Cancer Center
ClinicalTrials.gov Identifier:
NCT00006341
First received: October 4, 2000
Last updated: January 29, 2016
Last verified: January 2016
  Purpose

RATIONALE: The use of dentures and dental implants may help maintain chewing and speaking ability following surgery to remove tumors in the mouth.

PURPOSE: Phase II trial to study the effectiveness of dentures and dental implants in maintaining the ability to chew and speak in patients undergoing surgery for mouth cancer.


Condition Intervention Phase
Head and Neck Cancer
Other: Implant
Phase 2

Study Type: Interventional
Study Design: Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Supportive Care
Official Title: Efficacy of Implant-Supported Maxillofacial Prostheses

Resource links provided by NLM:


Further study details as provided by Jonsson Comprehensive Cancer Center:

Enrollment: 46
Study Start Date: June 1997
Study Completion Date: May 2003
Primary Completion Date: May 2003 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Implant
A total of 62 patients with early oral cancer will be recruited; in addition, 22 patients requiring a partial maxillectomy and 40 requiring a partial lateral mandibulectomy will be enrolled. The mandibular defects will be reconstructed with fibula free flap surgery. Following a healing period, implants will be placed and permitted to heal unloaded for six months. Conventional dental prostheses will be fabricated and used by patients for at least 16 weeks during Phase I healing before the implants are exposed and loaded. A few weeks after Phase II surgery, the patients will receive implant-supported dental prostheses.
Other: Implant
A total of 62 patients with early oral cancer will be recruited; in addition, 22 patients requiring a partial maxillectomy and 40 requiring a partial lateral mandibulectomy will be enrolled. The mandibular defects will be reconstructed with fibula free flap surgery. Following a healing period, implants will be placed and permitted to heal unloaded for six months. Conventional dental prostheses will be fabricated and used by patients for at least 16 weeks during Phase I healing before the implants are exposed and loaded. A few weeks after Phase II surgery, the patients will receive implant-supported dental prostheses.

Detailed Description:

OBJECTIVES:

  • Determine whether conventional or implant supported dental prostheses and current surgical reconstructive procedures restore oral function and quality of life to pre-cancer surgery levels in patients with early oral cancer.

OUTLINE: Patients complete a series of objective and subjective functional tests, questionnaires, and baseline examinations. Within 1-5 days, patients undergo the composite resection, including reconstructive surgery for the mandibulectomy group. Patients in the maxillectomy group receive an immediate maxillary surgical obturator. Approximately 6 weeks after ablative surgery, some patients receive radiotherapy for 5-7 weeks.

Patients receive 2-4 implants at 12-16 weeks after completion of radiotherapy or 8-16 weeks after ablative surgery. Patients then receive conventional dentures at 4-22 weeks after implant surgery. Implants are exposed during 27-48 weeks after placement and abutments connected for fabricating dental prostheses. Approximately 8 weeks are needed to fabricate the implant supported prosthesis.

Patients complete quality of life and other questionnaires prior to and at 8-21 weeks after surgery, 16 weeks after conventional denture insertion, and then 16 weeks after implant supported prosthesis insertion.

Patients are followed every 6 months for at least 3 years.

PROJECTED ACCRUAL: A total of 62 patients (22 requiring maxillectomy and 40 requiring mandibulectomy) will be accrued for this study within 42 months.

  Eligibility

Ages Eligible for Study:   35 Years to 80 Years   (Adult, Senior)
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

DISEASE CHARACTERISTICS:

  • Diagnosis of early oral cancer lesions requiring one of the following:

    • Partial or total unilateral maxillectomy OR
    • Partial lateral mandibulectomy with or without partial glossectomy
  • Edentulous or edentulous in the maxillary arch prior to or after ablative surgery (maxillectomy group)
  • Partial mandibulectomy leaving the condyles intact bilaterally (mandibulectomy group)
  • Must have sufficient bone in the selected implant sites to accommodate 2-4 implants of at least 10 mm in length
  • No temporomandibular dysfunction and/or functionally restrictive opening
  • No requirement for total glossectomy, reconstructive maxillary surgery, or maxillary sinus lift
  • No requirement for radiotherapy after mandibular reconstructive surgery

PATIENT CHARACTERISTICS:

Age:

  • 35 to 80

Performance status:

  • Not specified

Life expectancy:

  • Not specified

Hematopoietic:

  • Not specified

Hepatic:

  • Not specified

Renal:

  • Not specified

Other:

  • No oral discomfort that would preclude study
  • No complications after ablative or reconstructive surgery that would preclude dental rehabilitation with implants

PRIOR CONCURRENT THERAPY:

Biologic therapy:

  • Not specified

Chemotherapy:

  • Not specified

Endocrine therapy:

  • Not specified

Radiotherapy:

  • See Disease Characteristics
  • No prior or concurrent radiotherapy of greater than 5,500 cGY to potential implant site

Surgery:

  • See Disease Characteristics
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00006341

Locations
United States, California
Jonsson Comprehensive Cancer Center, UCLA
Los Angeles, California, United States, 90095-1781
Sponsors and Collaborators
Jonsson Comprehensive Cancer Center
Investigators
Study Chair: Neal R. Garrett, PhD Jonsson Comprehensive Cancer Center
  More Information

Responsible Party: Jonsson Comprehensive Cancer Center
ClinicalTrials.gov Identifier: NCT00006341     History of Changes
Other Study ID Numbers: CDR0000066588  UCLA-HSPC-940205413  UCLA-DEN-1R01DE11255  UCLA-HSPC-940205411  NCI-V00-1606 
Study First Received: October 4, 2000
Last Updated: January 29, 2016
Health Authority: United States: Institutional Review Board
Individual Participant Data  
Plan to Share IPD: No

Keywords provided by Jonsson Comprehensive Cancer Center:
stage I lip and oral cavity cancer
stage II lip and oral cavity cancer
stage III lip and oral cavity cancer

Additional relevant MeSH terms:
Head and Neck Neoplasms
Neoplasms by Site
Neoplasms

ClinicalTrials.gov processed this record on September 23, 2016