Evaluation of Gingival Biotypes of Anterior Teeth in Adults With Abnormal Skeletal Jaw Relations

Cairo University (CU)

Status: Unknown

Conditions: Abnormal Jaw Relations

Treatments: Other: exposure will be abnormal skeletal jaw relations

Study type: Observational

Funder types: Other

Identifiers

NCT03493477

CEBD-CU-2018-03-20

Details and patient eligibility

About

The aim of this study is to evaluate gingival biotypes and width of keratinized gingiva in the anterior region of adults with abnormal skeletal jaw relations.

Full description

This study will include consecutive adult patients seeking orthodontic treatment with skeletal Class II and Class III jaw relations based on clinical and cephalometric values. Each group will be further divided according to their vertical skeletal pattern. Gingival biotype will be determined -using the probe transparency method- into either thick or thin biotype for all anterior teeth in both jaws. Width of keratinized gingiva will be measured from the muco-gingival junction to the free gingival margin in the middle of the crown of the maxillary and mandibular anterior teeth using a digital caliper with a sensitivity of 0.01 mm. Statistical analysis will be applied to see the correlation between gingival biotypes , width of keratinized gingiva , and abnormal skeletal jaw relations.

Enrollment: 120 estimated patients

Sex: All

Ages: 18 to 30 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Adult patients having an age range of 18 -30 years.
2. Adults with skeletal Class II and Class III jaw relation
3. Fair oral hygiene with absence of any active periodontal disease.
4. Patients with full permanent dentition (with the exception of third molars) with acceptable alignment of teeth.
5. Absence of systemic disease (medically free patients).

Exclusion criteria

1. Patients with extensive restorations on the anterior teeth.
2. Subjects taking medication affecting the periodontal tissues
3. History of previous periodontal surgery or orthodontic treatment.
4. Pregnant or lactating female patients
5. Syndromic patients

Trial design

120 participants in 2 patient groups

Skeletal Class II Group

Description:

From the lateral cephalometric radiograph , Steiner analysis (ANB angle should be higher than mean value, mean value 3 ±2), Witt's appraisal should be higher than mean value (mean value zero), and McNamara analysis (A-B diff NV should be higher than mean value, mean value 4±2).At least two of the three mentioned analyses should verify skeletal class II relation

Treatment:

Other: exposure will be abnormal skeletal jaw relations

Skeletal Class III Group

Description:

From the lateral cephalometric radiograph , Steiner analysis (ANB angle should be lower than mean value, mean value 3 ±2), Witt's appraisal should be lower than mean value (mean value zero), and McNamara analysis (A-B diff NV should be lower than mean value, mean value 4±2).At least two of the three mentioned analyses should verify skeletal class III relation

Treatment:

Other: exposure will be abnormal skeletal jaw relations