INTRODUCTION TO ORTHODONTICS

Resource faculty:Dr.Prabhat Ranjan PokhrelHead of department

Dr.Rajesh GyawaliAssistant professor

Dr. Jamal GiriAssistant professor

Presented by :Alka Singh Roll no 472

CONTENTS

•DEFINITION

•AIMS OF ORTHODONTICS

•SCOPE OF ORTHODONTICS

•BRANCHES

Orthodontics Orthos = correct Odontus =teeth

DEFINITION

“Orthodontics includes the study of growth and development of the jaws and face particularly ,and the body generally as influencing the position of teeth ;the study of action and reaction of internal and external influences on the development and the prevention and correction of arrested and perverted development”

–british society for study of orthodontics(1992)

• ACCORDING TO AMERICAN BOARD OF ORTHODONTICS

“Orthodontics is that specific area of dental practice that has as its responsibility the study and supervision of the growth and the development of the dentition and its related anatomical structures from birth to dental maturity, including all preventive and corrective procedures of dental irregularities requiring the repositioning of teeth by functional or mechanical means to establish normal occlusion and pleasing facial contours”. 

Why orthodontics?

•Malocclusion and its sequale

• Poor facial appearance

• Risk of caries

• Predisposition to periodontal health

• Psychological disturbances

• To close diastema

•Oral habits

• Correction of speech defects

• Risk of trauma: Class II malocclusion

AIMS

Jackson’s triad

Functional efficiency Structural balalnce

Esthetic harmony

Functional efficiency It depends upon correct relationship of teeth to each other and their orientation to skull as a whole to permit a satisfactory functioning of orofacial apparatus

Structural balance :stable orthodontic treatment is best achieved by maintaining a balance between dentoalveolar system, the skeletal system and soft tissue

Esthetic harmony: It is a matter of proportion in shape, size and orientation of dental organs as a whole in their relationship to other facial factors

GOAL

• Is not ‘just cosmetic’…. It reflects the patient’s desire to improve their social acceptability and eliminate discrimination based on appearance, which can affect their quality of life greatly

SCOPE

• ALTERATION IN TOOTH POSITION

• ALTERATION IN SKELETAL PATTERN

• ALTERATION IN SOFT TISSUE PATTERN

BRANCHES

• PREVENTIVE ORTHODONTICS

• INTERCEPTIVE ORTHODONTICS

• CORRECTIVE ORTHODONTICS

• SURGICAL ORTHODONTICS