Protocol Number: 05-D-0103

Title:

Genes Associated with Hereditary and Drug-Induced Gingival Overgrowth

Number:

05-D-0103

Summary:

This study will examine common features of gingival overgrowth (excessive growth of the gums around the teeth) that develops in patients with the hereditary form of the condition and in those who develop the condition as a side effect of medications. A better understanding of gingival overgrowth may help scientists develop medications with fewer oral side effects.

Patients of any age with hereditary gingival fibromatosis and their blood relatives, and patients of any age with gingival overgrowth who are taking medications associated with development of the disorder, including phenytoin (diphenylhydantoin or Dilantin), cyclosporine, and calcium-channel blockers, may be eligible for this study.

Participants undergo a medical and dental history, including a history of medication use; detailed examination of the teeth, periodontium, head, and neck; photographs of teeth with gingival overgrowth; dental x-rays; and blood tests. DNA is extracted from a blood sample to look for genes related to gingival overgrowth.

Patients with gingival overgrowth are offered two options, as follows:

- Tissue biopsy: A tissue sample is taken from each affected site, with a maximum of three biopsies. For the procedure, lidocaine is first injected into the gum to numb the tissue. Then, a cookie-cutter instrument is pushed into the numbed skin, and a small piece of tissue is removed.

- Gingivectomy: Surgical removal of the overgrown gingival.

Sponsoring Institute:

National Institute of Dental And Craniofacial Research (NIDCR)

Recruitment Detail

Type: Participants currently recruited/enrolled

Gender: Male & Female

Referral Letter Required: No

Population Exclusion(s): None

Eligibility Criteria:

INCLUSION CRITERIA:

Patients of any age, gender, and racial/ethnic group with hereditary gingival fibromatosis (HFG) as diagnosed with HGF by clinical appearance that consists of attached gingival covering the lower 1/3 or more of the clinical crowns of teeth in an individual not taking medications associated with gingival changes.

Blood relatives of affected individuals who are at risk of inheriting HGF.

Patients of any age, gender, and racial/ethnic group taking one of the three medications associated with drug-induced gingival overgrowth (phenytoin diphenylhydantoin or Dilantin, cyclosporine, or calcium-channel blockers).

Patients with six or more teeth.

EXCLUSION CRITERIA:

Patients with significant cognitive impairment.

Pregnant patients or lactating patients.

Patients unwilling to give informed consent.

Patients with less than six teeth.

Special Instructions:

Currently Not Provided

Keywords:

Periodontal Disease

Dilantin

Cyclosporin

Calcium-Channel Blockers

Genetics

Recruitment Keyword(s):

Hereditary Gingival Fibromatosis

HGF

Periodontal Disease

Gingival Overgrowth

Gum Overgrowth

Condition(s):

Gingival Overgrowth

Investigational Drug(s):

None

Investigational Device(s):

None

Intervention(s):

None

Supporting Site:

National Institute of Dental and Craniofacial Research

Contact(s):

Patient Recruitment and Public Liaison Office
Building 61
10 Cloister Court
Bethesda, Maryland 20892-4754
Toll Free: 1-800-411-1222
TTY: 301-594-9774 (local),1-866-411-1010 (toll free)
Fax: 301-480-9793

Electronic Mail:prpl@mail.cc.nih.gov

Citation(s):

Boratynska M, Radwan-Oczko M, Falkiewicz K, Klinger M, Szyber P. Gingival overgrowth in kidney transplant recipients treated with cyclosporine and its relationship with chronic graft nephropathy. Transplant Proc. 2003 Sep;35(6):2238-40.

Casetta I, Granieri E, Desidera M, Monetti VC, Tola MR, Paolino E, Govoni V, Calura G. Phenytoin-induced gingival overgrowth: a community-based cross-sectional study in Ferrara, Italy. Neuroepidemiology. 1997;16(6):296-303.

Ellis JS, Seymour RA, Taylor JJ, Thomason JM. Prevalence of gingival overgrowth in transplant patients immunosuppressed with tacrolimus. J Clin Periodontol. 2004 Feb;31(2):126-31.

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