INTRODUCTION TO ORTHODONTICS Dr. Zuber Ahamed Naqvi
OBJECTIVES Definition Unfavorable sequelae of malocclusion Aims of orthodontic treatment Scope of orthodontic treatment Orthodontic services History
Definition 1992- British society for the study of orthodontics “Orthodontics includes the study of the growth and development of the jaws and face particularly, and the body generally as influencing the position of the 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”.
Unfavorable sequelae of malocclusion Poor facial appearance Caries risk Predisposition to periodontal disease
Unfavorable sequelae of malocclusion Psychological disturbances Risk of trauma Abnormalities of function TMJ
Aims of orthodontic treatment Jackson’s triad Functional efficiency Structural balance Esthetic harmony
SCOPE Alteration in tooth position Alteration in skeletal pattern Alteration of soft tissue pattern
Alteration in tooth position
Alteration in skeletal pattern
Alteration of soft tissue pattern
Orthodontic services Preventive orthodontics Interceptive orthodontics Corrective orthodontics Surgical orthodontics
Surgical orthodontics
HISTORY Pierre Fauchard- founder of modern dentistry First orthodontic appliance- Bandelette- to expand the dental arch. Norman Kingsley- first to use extra oral force to correct protruding teeth.
Edward H. Angle Father of modern orthodontics Orthodontics separated from other branches of dentistry. Classification of malocclusion Pin and tube appliance Ribbon arch appliance Edgewise appliance School of orthodontics at St. Louis, New London, Connecticut
Holly Broadband and Hofrath- cephalometric radiography. Raymond Begg- Begg’s appliance / light wire technique. Lawrence Andrews- Straight Wire Appliance
References Contemporary orthodontics. 4th edition. William R Proffit Orthodontics : the art and science. 4th edition. S I Bhalaji Orthodontics and dentofacial orthopedics. James A McNamara, William L Burdon