• 제목/요약/키워드: gummy smile

검색결과 25건 처리시간 0.034초

Orthodontic treatment of gummy smile by maxillary total intrusion with a midpalatal absolute anchorage system

  • Hong, Ryoon-Ki;Lim, Seung-Min;Heo, Jung-Min;Baek, Seung-Hak
    • 대한치과교정학회지
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    • 제43권3호
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    • pp.147-158
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    • 2013
  • This article describes the orthodontic treatment of a 31-year-old Korean female patient with gummy smile and crowding. The patient showed excessive gingival display in both the anterior and posterior areas and a large difference in gingival heights between the anterior and posterior teeth in the maxilla. To correct the gummy smile, we elected to intrude the entire maxillary dentition instead of focusing only on the maxillary anterior teeth. Alignment and leveling were performed, and a midpalatal absolute anchorage system as well as a modified lingual arch was designed to achieve posterosuperior movement of the entire upper dentition. The active treatment period was 18 months. The gummy smile and crowding were corrected, and the results were stable at 21 months post-treatment.

보툴리눔 독소를 이용한 치은과다노출증의 치료 고찰 (Treatment of gummy smile using botulinum toxin: a review)

  • 명양호;우건철;김성택
    • 구강회복응용과학지
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    • 제37권2호
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    • pp.61-72
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    • 2021
  • 아름다운 미소는 좌우 대칭을 이루며 2 - 3 mm 치은을 보이는 상태를 일컫는다. 과다한 치은노출은 "거미 스마일"로 불리며 미적 장애로 인식되어 왔는데 원인으로는 지연맹출, 상악의 과도한 수직성장, 윗입술의 과도한 움직임 또는 짧은 윗입술로 등으로 보고되어왔다. 한편 클로스트리디움 보툴리눔 세균에서 생성된 외독소인 보툴리눔 독소는 투여된 부위의 신경말단에서 아세틸콜린의 유리를 막아서 근육 수축을 약화시켜 윗입술 과잉 운동으로 인한 치은과다노출증의 새로운 치료법으로 주목 받고있다. 현재까지 입술 주변 근육에 보툴리눔 독소를 주입하는 방법에 대한 많은 연구가 있었지만 아직 표준화 된 연구 방법과 치료 방법이 없어 치료 효과에 대한 논란이었다. 본 종설의 목적은 이러한 지난 과거의 연구들에서 적응증을 선택하기 위한 요소 및 보툴리눔 독소 치료의 효과를 분석하고자 한다. 특히 치은과다노출증에서 보툴리눔 독소 주사의 최적의 용량과 최적의 주사부위를 제시하고자 하였다.

Esthetic Crown Lengthening

  • 김광효
    • 대한심미치과학회지
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    • 제26권2호
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    • pp.84-100
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    • 2017
  • Excessive gingival display의 원인은 다양하며 원인에 따라 치료방법은 다르지만, 여기서는 gingiva와 alveolar bone이 치아면을 과도하게 덮고 있는 경우에 어떻게 치료하는가에 관해 다루고자 한다. 이것은 gummy smile의 가장 흔한 원인이며 필자의 임상경험을 토대로 그것에 대한 treatment protocol과 guideline을 체계적으로 설명하고자 한다.

Nonsurgical correction of a severe anterior deep overbite accompanied by a gummy smile and posterior scissor bite using a miniscrew-assisted straight-wire technique in an adult high-angle case

  • Wang, Xue-Dong;Zhang, Jie-Ni;Liu, Da-Wei;Lei, Fei-fei;Zhou, Yan-Heng
    • 대한치과교정학회지
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    • 제46권4호
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    • pp.253-265
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    • 2016
  • In the present report, we describe the successful use of miniscrews to achieve vertical control in combination with the conventional sliding MBT$^{TM}$ straight-wire technique for the treatment of a 26-year-old Chinese woman with a very high mandibular plane angle, deep overbite, retrognathic mandible with backward rotation, prognathic maxilla, and gummy smile. The patient exhibited skeletal Class II malocclusion. Orthodontic miniscrews were placed in the maxillary anterior and posterior segments to provide rigid anchorage and vertical control through intrusion of the incisors and molars. Intrusion and torque control of the maxillary incisors relieved the deep overbite and corrected the gummy smile, while intrusion of the maxillary molars aided in counterclockwise rotation of the mandibular plane, which consequently resulted in an improved facial profile. After 3.5 years of retention, we observed a stable, well-aligned dentition with ideal intercuspation and more harmonious facial contours. Thus, we were able to achieve a satisfactory occlusion, a significantly improved facial profile, and an attractive smile for this patient. The findings from this case suggest that nonsurgical correction using miniscrew anchorage is an effective approach for camouflage treatment of high-angle cases with skeletal Class II malocclusion.

심미보철을 위한 치주치료 (Periodontal Plastic Surgery for Esthetic Restoration)

  • 김정해
    • 대한치과의사협회지
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    • 제48권9호
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    • pp.670-679
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    • 2010
  • Esthetic demands for dental treatment are increasing every day. The interdisciplinary relationship of the restorative treatment, periodontal therapy and other treatments such as endodontics, orthodontics and so on is more emphasized nowadays to reconstruct the hard and soft tissue foundation for the esthetic restorative treatment. This article will focus on the periodontal plastic surgery for esthetic restorative treatment. These followings will be discussed. 1. Understand the relationship between teeth and gingival scaffold for esthetics 2. Discuss the classification and treatment of gummy smile 3. Recognize the gingival margin irregularities by gingival recession and how to achieve the harmonic soft tissue margins 4. describe the hard and soft tissue augmentation for ridge augmentation.