Crown lengthening: is a surgical procedure performed on a healthy periodontium that requires exposure of adequate tooth structure (so, the amount of tooth exposed supragingivally is increased) for restorative purposes. This may be achieved by several techniques (either orthodontically or surgically) depending upon: 5955030183515
The proposed location of the restorative margin.
The location of the alveolar crest and gingival margin.
is a natural defense of the periodontium ,The concept of a minimum dimension of tissue from the alveolar crest to the bottom of the gingival sulcus. Consist of the average histological dimensions of the:
Understanding of the biological width and the level of the osseous crest is key to maintaining periodontal health in the presence of dental restorations. The location of a restorative margin relative to the crest of the alveolar bone is more critical for preserving gingival health than its distance below the free gingival margin.
The Goal and Location of periodontal surgery:
The goal of the procedure is to increase the length of the clinical crown of 14, in order to make the crown margin in sound tooth structure without extending it deep into the periodontal tissue and jeopardizing the biological width.
Preoperative Photographs: Premedication There was no need for premedication because she is a medically fit.Local anesthesia 2% xylocain with 1:100,000 epinephrine infiltration injection to anesthetize middle superior alveolar nerve buccally and Greater palatine nerve infiltration palatally, (2carpules).Incision lefttopUsing # 15 scalpel blade, the first incision (Internal bevel Incision) 1mm from gingival margin, followed by sulcular incision and finally interdental incision by orban knife Incisions have been done at Buccal & Lingual sides, extended from 13 to 15. Flap: 6502400469900 Full thickness flap reflected buccally and palatally Using mucoperiosteal elevator. Open flap debridement, scaling and root planning eliminating the local factors, Then, tissue collar and granulation tissue removed by surgical curettes. Osseous correction: 787400top 1mm of the tooth supporting bone was removed buccally, palatally, mesially and distally with a high speed # 4 round bur.Sutures