牙颌面畸形小讲课蔡鸣

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- Dental facial Deformities Cai Ming Dept. of OMS, Shanghai 9 th people’s hospital, Jiao tong University

Transcript of 牙颌面畸形小讲课蔡鸣

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- Dental facialDeformities

Cai Ming

Dept. of OMS, Shanghai 9th people’s hospital, Jiao tong University

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Orthognathic Surgery

Definition

Classification

Treatment plan

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CLASSIFICATION

Vertical

Sagittal

Transverse

Bimaxillary

Asymmetric

Hyperplasia

Hypoplasia

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AngleAngle 分类分类

Angle Ⅰ 正常

Angle Ⅰ 错

Angle Ⅱ 错

Angle Ⅲ 错

下颌后缩或上颌前突

上颌后缩或下颌前突

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ETIOLOGY

Congenetial

Acquired

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EXAMINATION

History

Clinical finding

Laboratory

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LaterallyFrontally

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Teeth

Dental

Mouth opening

TMJ

X-Ray

Model

Photographic

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Cephelometric Analysis

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1.硬组织测量标志点

颅部 蝶鞍点( S ) 

鼻根点( N )

机械耳点 (P)

上颌骨 前鼻棘 (ANS)

上齿槽座点( A )

上中切牙点( U1 )下颌骨 下齿槽座点( B )

下中切牙点( L1 )

颏前点( Pg )

颏下点 (Me)

颏顶点 (Gn)  

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额点( G )

鼻小柱点( Cm )

鼻下点( Sn )

上唇缘点( UL )

下唇缘点( LL )

软组织颏前点

(Pgs)

软组织颏下点

(Mes)

颈点( C )

1.软组织测量标志点

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Reference Plane and Angel

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CaseCaseSNA 78°SNB 85 °ANB 7 °

S

N

A

B

SN

A

B

SNA 76°SNB 70 °ANB 6 °

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Treatment Plan

Examination

Diagnosis

Joint orthognathic & orthodontic assessment

Presurgical Orthodontics

Postsurgical Orthodontics

Surgical Plan

Or t hognat hi c Sur ge r y

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Objective of Presurgical Orthodontic

Decompansation

(angulation teeth, accentuate deformities)

Alignment

Compatibility

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PREPARATION

Caries & Peridontal disease

Visal treament objective

Model surgery

Computer aided analyze

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VTO

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SURGICAL TREAMENT PHASE

Maxilla

Mandible

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Maxillary segmental osteotomy (Anterior / Posterior)

Indications:

- maxillary protrusion

- marked protrusion of

maxillary teeth

- open bite

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Le Fort I osteotomy

(total or segmental)

Indications:

- maxillary deformities

- mandibular deformities

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常用正颌外科截骨线常用正颌外科截骨线 --- --- Le fort I osteotomyLe fort I osteotomy

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Le Fort II or III osteotomy

Indications:

- midface deficiency

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Sagittal split ramus osteotomy,

SSRO

Indications:

- mandibular excess

- mandibular

deficiency

- mandibular

asymmetry Adback

rotate

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Vertical ramus osteotomy

Indications:

- mandibular excess

- mandibular asymmetry

(combined with SSRO)

back

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Subapical osteotomy

Indications:

- bimaxillary protrusion / open bite

- leveling the plane of occlusion

- uprighting anterior teeth

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Body osteotomy

Indications:

- mandibular excess (body)

combined with ramus procedure or not

- open bite / spee’s curve reduction

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Genioplasty

Indications:

- chin deformities

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Pretreatment

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Model Surgery

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PostLe Fort I &genioplasty

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SNA 88°

SNB 81°

ANB 7° SNA 84°

SNB 81°

ANB 3°

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Distraction Osteogenesis

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颅骨外固定牵引装置

颅骨外固定牵引装置

截骨位置

截骨位置

口内固定牵引装置

口内固定牵引装置

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3-D CT 3-D Model

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Simulated Operation

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Surgery

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Distraction Osteogenesis

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• 颞颌关节成形颞颌关节成形 // 再造术再造术• 颏前移舌骨悬吊术 颏前移舌骨悬吊术• 上、下颌牵引成骨术 上、下颌牵引成骨术• 双颌前移术 双颌前移术• 颌骨重建术 颌骨重建术

颅颌硬组颅颌硬组织畸织畸形或缺损形或缺损患者患者 手术治手术治

疗疗

术前正压术前正压 通气治疗 通气治疗

以以形态形态畸形原

因畸形原

…为主患

者…为主患

• 呼吸道管理呼吸道管理

• 随随访访

术术后后

留管留管 11 -- 33 天天CPAPCPAP

• 减肥减肥 // 体重控制体重控制

患者 患者

• 患者颅颌面检查 患者颅颌面检查• 头颅定位测量分析 头颅定位测量分析• 鼻咽纤维镜 鼻咽纤维镜• 上气道压力检测上气道压力检测• 神经神经 -- 肌功能检查肌功能检查

PSGPSG

上气上气道道形态形态学和学和功能功能检查检查

阻阻塞塞原原因因部部位位程程度度

CPAPCPAP非手术治疗

非手术治疗 口腔功能矫治器口腔功能矫治器减肥减肥

睡眠呼吸障碍诊疗睡眠呼吸障碍诊疗

颅颌软组织畸形颅颌软组织畸形患者(肥胖、肿患者(肥胖、肿瘤等患者)瘤等患者) • 体重控制、减肥治疗体重控制、减肥治疗

• 定量定量 UPPPUPPP 术+舌骨悬吊术 术+舌骨悬吊术• 射频温控减容术 射频温控减容术

• 双颌前移术 双颌前移术• 肿瘤+重建手术 肿瘤+重建手术

• 舌根舌根 // 舌体减容术 舌体减容术

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Thank You