MOLAR DISTALISATION

A COMPARITIVE CASE STUDY OF

FOUR DIFFERENT MOLAR DIATALISERS

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INDIAN DENTAL ACADEMY

Leader in continuing dental education www.indiandentalacademy.com

INTRODUCTION

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INDICATIONS

* NON EXTRACTION TREATMENT OF

CLASS II MALOCCLUSIONS.

* LOW MANDIBULAR ANGLE .

* CLASS I SKELETAL PATTERN.

* MILD ARCH LENGTH DISCREPANCY.

* WHERE THE UPPER PERMANENT

MOLARS HAVE MOVED MESIALLY DUE

TO EARLY LOSS OF DECIDOUS MOLARS. www.indiandentalacademy.com

CONTD…..

* WHERE THE SECOND MOLARS HAVE NOT

ERUPTED ( OR) TO BE EXTRACTED.

* IN SECOND MOLAR EXTRACTION CASES

WHERE THE THIRD MOLARS ARE WELL

FORMED & ERUPTING PROPERLY

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CONTRAINDICATIONS

* HIGH MANDIBULAR PLANE ANGLE

* SKELETAL & DENTAL OPEN BITE.

* CL II & CL III SKELETAL PATTERN.

* SEVERE ARCH LENGTH

DISCREPANCY

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CLASSIFICATION

I REMOVABLE MOLAR DISTALISER

II FIXED MOLAR DISTALISER

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REMOVABLE MOLAR DISTALISER

* EXTRA ORAL TRACTION

* REMOVABLE MOLAR DISTALZATION

SPLINT.

* LIP BUMPER

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* PENDULUM APPLIANCE

* WILSON ‘S RAPID MOLAR DISTALIZER

* SUPER ELASTIC NITI.

* “ K” LOOP MOLAR DISTALIZER.

* LOKAR APPLIANCE.

* JONES JIG.

* DISTAL JET.

FIXED MOLAR DISTALIZERS

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Case Report -- 1

EXTRA ORAL PRE TREATMENT

PT NO : 1 16/ F* STRAIGHT PROFILE

* INCOMPETENT LIPSwww.indiandentalacademy.com

INTRA ORAL PRE TREATMENT

* PROCLINED CENTRALS

* CONGENITALLY MISSING

LATERALS & 3rd MOLARS

* ENDON

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DIAGNOSTICS

* OVER JET 6 mm

* OVER BITE 6 mm

* ARCH LENGTH DISCREPANCY + 3 mm

* INCISOR PROCLINATION 9 0

* FMA 24 0

* SKELETAL CLASS I

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* CLASS I M OLAR

RELTIONSHIP.

AFTER DISTALISATION

* SPACE - 7mm

* DAYS - 70

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OCCLUSAL VIEW

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RICKETTS SUPER IMPOSITION

ANS - PNS AS REFERENCE PLANE

ANS AS REFERENCE POINT

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EXTRA ORAL PRE TREATMENT

Case Report -- II

PT No: 2 12 / F * SLIGHT CONVEXwww.indiandentalacademy.com

INTRA ORAL PRE TREATMENT

* INCISOR PROCLINATION

* ENDON

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DIAGNOSTICS

* OVER JET 5 mm

* OVER BITE 5 mm

* ARCH LENGTH DISCREPANCY -- 8 mm

* INCISOR PROCLINATION 10 0

* FMA 27 0

* SKELETAL CLASS I

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WITH THE APPLIANCE

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AFTER DISTALISATION

MOLARS IN CLASS I

8 mm 90 DAYS

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OCCLUSAL VIEW

BEFORE & AFTER

DISTALIZATIONwww.indiandentalacademy.com

INTRUSION WITH BURSTONEINTRUSION ARCH

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RICKETTS SUPER IMPOSITION

ANS - PNS AS REFERENCE PLANE

ANS AS REFERENCE POINT

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EXTRA ORAL PRE TREATMENT

Case Report -- III

Pt. No.3 11 F * STRAIGHT PROFILE

* LOW ANGLEwww.indiandentalacademy.com

INTRA ORAL PRE TREATMENT

* ROTATED CENTRAL

* UNERUPTED CANINES

* ENDON

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DIAGNOSTICS

* ARCH LENGTH DISCREPANCY -- 7.2mm

* FMA 21 0

* SKELETAL CLASS I

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WITH THE APPLIANCE

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OCCLUSAL VIEW

BEFORE & AFTER

8 mm in 90 dayswww.indiandentalacademy.com

AFTER DISTALISATION

MOLARS IN CLASS I

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RICKETTS SUPER IMPOSITION

ANS - PNS AS REFERENCE PLANE

ANS AS REFERENCE POINTwww.indiandentalacademy.com

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EXTRA ORAL PRE TREATMENT

Case Report -- IV

PT. NO: 4 12 / F* STRAIGHT PROFILE

* LOW ANGLEwww.indiandentalacademy.com

INTRA ORAL PRE TREATMENT

* CLASS II ( R )

* ENDON (L)

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DIAGNOSTICS

* OVER JET 4 mm

* OVER BITE 5 mm

* ARCH LENGTH DISCREPANCY -- 7 mm

* INCISOR PROCLINATION 9 0

* FMA 21 0

* SKELETAL CLASS I

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OCCLUSAL VIEW

8 mm IN

90 days

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AFTER DISTALISATION

MOLARS IN CLASS I

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RICKETTS SUPER IMPOSITION

ANS - PNS AS REFERENCE PLANE

ANS AS REFERENCE POINTwww.indiandentalacademy.com

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DR.C.R.RAMACHANDRAN DEAN DR.RAJASIGAMANI PROFESSOR & HEAD OF THE DEPARTMENT Dept. of Orthodontics & Dentofacial Orthopaedics

DR.USHA SATHYA NARAYANAN PROFESSOR & HEAD OF THE DEPARTMENT Dept. of conservative dentistry

RMDC & H ANNAMALAI UNIVERSITY

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