نتایج جستجو برای: gingival line
تعداد نتایج: 423295 فیلتر نتایج به سال:
Objective: A gummy smile or a high smile line may lead to a poor smile which can have impact on patient’s appearance and confidence. This case report summarizes the use of surgical lip repositioning technique for the management of a gummy smile. Clinical considerations: The procedure limits the muscle pull of the elevator muscles of the lip by shortening the vestibule, thus reducing the gingiva...
Normal 0 false false false EN-US X-NONE AR-SA Correct contour and shape of crown margin or casting finishing line is not sufficient for healthy status of tissues and teeth filling materials. Thus, all the requirements for preservation of tissues should be provided. Gingival health is a very important issue that should be considered before prosthet...
Normal 0 false false false EN-US X-NONE AR-SA Frenum or Frenulum is defined by Miller as a membrane joining two parts that causes movement limitation. Oral cavity frenums are : 1) labial frenums of maxilla and mandible which are also known as inhibition of lips. 2) lingual frenum of tongue located between central incisors 3) frenum in mandibular pr...
Background and Aims: Despite the increasing application of intra-oral scanners, the effect of finish line position on gingival margins adaptation is still discussed. The purpose of this clinical study was to evaluate the fitness of cobalt-chromium copings obtained from intraoral scanning in two depth of finish lines. Materials and Methods: Thirty teeth prepared for single premolar metal-cerami...
Bacteroides forsythus is a gram-negative, anaerobic, fusiform bacterium and is considered to be an etiological agent in periodontal disease. A lipoprotein fraction prepared from B. forsythus cells by Triton X-114 phase separation (BfLP) activated human gingival fibroblasts and a human monocytic cell line, THP-1, to induce interleukin-6 production and tumor necrosis factor alpha production. BfLP...
AIM The purpose of this laboratory research was to compare the accuracy of digital and conventional bitewing radiographs in the diagnosis of recurrent caries under class II amalgam restorations. METHODS AND MATERIALS This study involved 82 posterior intact teeth in which class II amalgam boxes were prepared. Carious lesions were simulated in half of the proximal boxes in the intersection betw...
OBJECTIVES This study investigates coincidence of the most-prominent point and the mid-point on upper anterior teeth in relation to the use of straight-wire appliances. MATERIALS AND METHODS Alginate impressions of the upper jaw were obtained from forty Caucasian patients. Impressions were cast using hard dental stone. The teeth on each upper study model (canine to canine) were marked along t...
Gingival health and appearance are essential components of an attractive smile. Gingival pigmentation results from melanoblastic activity. ‘Black gums’ are common esthetic problem particularly in patients who have a very high smile line (gummy smile). Different treatment modalities have been reported for depigmentation of gingiva such as bur abrasion, scraping, partial thickness flap, cryothera...
Gingival hyperpigmentation is seen as a genetic trait in some populations irrespective of age and gender, hence it is termed physiologic or racial gingival pigmentation. Melanin, a brown pigment, is the most common natural pigment contributing to endogenous pigmentation of gingiva and the gingiva is also the most predominant site of pigmentation on the mucosa. Melanin pigmentation is the result...
BACKGROUND Human cytomegalovirus (HCMV) infection is associated with renal transplant failure. Periodontal pockets may be reservoirs for HCMV replication. OBJECTIVES This study was done to determine active HCMV replication in saliva and gingival crevicular fluid of renal transplant patients affected by periodontitis. METHODS HCMV pp67-mRNA amplification was analyzed in oral fluids of 38 tra...
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