Crown lengthening
Dental Procedures
estimated about CNY 2500-6500
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Description
Crown lengthening reshapes gum and bone tissue to expose more tooth structure for restorative dentistry or cosmetic improvement, with costs in China typically ranging from ¥2500 to ¥6500; ChinaMedicalHub assists with hospital booking and interpreter support.
Main Uses
Crown lengthening is primarily performed to: 1) Expose sound tooth structure for restorative dentistry (e.g., subgingival caries, fractured margins, or insufficient clinical crown height for crown/bridge placement); 2) Improve esthetics by correcting gummy smiles or uneven gingival margins; 3) Establish proper biologic width to prevent chronic inflammation and bone loss around restorations; 4) Facilitate access for definitive periodontal therapy in cases of deep subgingival defects.
Normal Range
Coronary lengthening (crown lengthening) is a surgical dental procedure, not a laboratory test with numerical values; therefore, there is no 'normal range' of quantitative measurements. Clinical success is assessed qualitatively via postoperative evaluation: adequate gingival margin position (typically 3–4 mm of clinical crown height above the alveolar bone), biologic width preservation (≥2 mm distance between restorative margin and alveolar crest), absence of inflammation, and stable soft-tissue contours.
Low Values - Possible Causes
Insufficient crown lengthening may result from: 1) Inadequate osseous resection during surgery, 2) Excessive soft-tissue rebound due to poor flap design or premature suture removal, 3) Undiagnosed or untreated periodontal inflammation compromising healing, 4) Patient noncompliance with postoperative care (e.g., smoking, poor oral hygiene), 5) Anatomical limitations such as thin gingival biotype or minimal keratinized tissue.
High Values - Possible Causes
Excessive crown lengthening (over-resection) may occur due to: 1) Overly aggressive osteoplasty or osteotomy, 2) Misinterpretation of radiographic bone level leading to unnecessary bone removal, 3) Failure to account for biologic width dimensions preoperatively, 4) Uncontrolled flap displacement or inadequate primary closure causing excessive tissue exposure, 5) Postoperative complications like necrosis or dehiscence leading to unintended tissue loss.
estimated about CNY 2500-6500