Cpc sabeerfinal/ dental implant courses by Indian dental academy

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MANDIBULAR PROGNATHISM

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INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com

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NAME: Sabeer Ali AGE : 19 YEARS SEX

: MALE

CHIEF COMPLAINT : Forwardly placed lower jaw, patient is not satisfied with his appearance. www.indiandentalacademy.com


CLINICAL EXAMINATION RECORDS •

ATHLETIC BUILT , MESOMORPHIC BODY TYPE,NORMAL GAIT AND ERECT POSTURE EXTRAORAL EXAMINATIONS:

• • • • • • • • •

SHAPE OF THE HEAD FACIAL FORM FACIAL PROFILE FACIAL DIVERGENCE FMA MAXILLA MANDIBLE LIPS MENTALIS

- DOLICHOCEPHALIC - DOLICHOFACIAL - CONCAVE - ANTERIOR DIVERGENCE - HIGH - NORMAL - PROTRUSIVE - 7 mm of Lip incompetency - HYPERACTIVE

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EXTRA ORAL PHOTOGRAPHS

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INTRAORAL EXAMINATION • • •

No. of teeth present -29 Periodontal status –normal Tongue size-normal

Maxillary Arch • Canines and premolars are rotated • U- shaped symmetrical arch,

MandibularArch • mild crowding and premolar rotations • U- shaped symmetrical arch, www.indiandentalacademy.com


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Antero-Posterior Relationship Molar relationship - Angle’s Class III

Incisor relationship: Overjet - REVERSE OVERJET – 8mm

Canine relationship: Class III www.indiandentalacademy.com


LATERAL CEPHALOGRAM

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OPG

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STEINER’S ANALYSIS

SKELETAL

ANGLES

NORMAL (RANGE)

PRE TREATMENT

SNA

82°

85 °

SNB

80°

91°

ANB

-6°

Go Gn to SN

32°

37°

Occl. Pl to SN

14°

U1 to N-A(mm)

4mm

11mm

U1 to N-A (Angle)

22°

41 °

L1 to N-B (mm)

4mm

8 mm

L1 to N-B (Angle)

25°

23°

Int. Inc. Angle

134°

122°

DENTAL

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MALES MEAN S.D

LANDMARKS CRANIAL BASE Ar PTM (HP) PTM-N (HP)

PATIENT VALUE

37.1 ± 52.8 ±

2.8 3.0

38 mm

3.9 ± 0.0 ± -5.3 ± -4.3 ±

6.4 3.7 6.7 8.5

- 13º + 3 mm +17 mm + 20mm

3.2 3.8 1.7 5.9 2.1 2.1 2.0 2.6

56mm 81mm 56 mm 28º 27 mm 43 mm 25 mm 31 mm

57.7 ± 2.5 52.0 ± 4.2 83.7 ± 4.6 8.9 ± 1.7 119.1 ± 6.5 www.indiandentalacademy.com

52 mm 58 mm 89 mm 8 mm 145º

48 mm

HORIZONTAL (Sk.) N-A-Pg angle N-A (HP) N-B (HP) N-Pg (HP) VERTICAL (Sk. and DENTAL) N-ANS (HP) ANS-Gn (HP) PNS-N (HP) MP-HP angle Upper incisor –NF Lower incisor-MP Upper molar-NF Lower molar-MP

54.7 68.6 53.9 23.0 30.5 45.0 26.2 35.8

± ± ± ± ± ± ± ±

MAXILLA –MANDIBLE PNS-ANS (HP) Ar-Go (linear) Go-Pg(linear) B-Pg (MP) Ar-Go-Gn angle


WITT’S APPRAISAL:

Pretreatment:: AO ahead of BO by 20 mm Inference : Sk. Cl III

Male: BO ahead of AO by 1.7mm

SOFT TISSUE ANALYSIS MEAN VALUE

PRE TREATMENT

In class III 20.9

22 mm

Upper lip thickness

15mm

18 mm

Upper lip strain

14 - 16

3 mm

90 - 110°

90º

ANGLES

Upper lip length

Naso Labial angle

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Diagnosis : •

Angle’s Cl III molar relationship with Cl III Skeletal base due to retruded maxilla and prognathic mandible,

Anterior Open bite,

Reverse overjet,

Mild crowding and rotations in the upper and lower anteriors,

Concave facial profile with lip incompetence,

High FMA.

Treatment Objectives: •

Alignment of upper/lower arches.

Correction of the Skeletal base.

Achievement of Lip competency.

Enhancement of facial esthetics.

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Treatment Plan: •

Alignment using 0.22 Roth prescription bracket system.

High Lefort I osteotomy for maxillary advancement.

Bilateral Sagittal Split Osteotomy for mandibular setback.

Post surgical Orthodontics for finishing and detailing.

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www.indiandentalacademy.com Leader in continuing dental education

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