Your SlideShare is downloading. ×
Etiology of malocclusion local factors /certified fixed orthodontic courses by Indian dental academy
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Introducing the official SlideShare app

Stunning, full-screen experience for iPhone and Android

Text the download link to your phone

Standard text messaging rates apply

Etiology of malocclusion local factors /certified fixed orthodontic courses by Indian dental academy

260
views

Published on


The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.

Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078

Published in: Health & Medicine, Education

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
260
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Etiology of Malocclusion:-Etiology of Malocclusion:- Local FactorsLocal Factors www.indiandentalacademy.com INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com
  • 2. The local factors responsible for malocclusion:- • Anomalies in number of teeth - supernumerary teeth -missing teeth • Anomalies of tooth size • Anomalies of tooth shape • Abnormal labial frenum • Premature loss of deciduous teeth • Prolonged retention of deciduous teeth www.indiandentalacademy.com
  • 3. • Delayed eruption of permanent teeth • Abnormal eruptive path • Ankylosis • Dental caries • Improper dental restorations www.indiandentalacademy.com
  • 4. • Anomalies in number of teeth:- supernumerary teeth:- Teeth that are extra to the normal complement are termed supernumerary teeth. These are having abnormal morphology. A frequently seen supernumerary tooth is mesiodens which occurs in maxillary midline www.indiandentalacademy.com
  • 5. Missing teeth:- most commonly missing teeth are-third molars, maxillary lateral incisors, mandibular 2nd premolars, mandibular incisors, maxillary 2nd premolars. Absence of teeth cause spacing in the arch and causes mesial migration of distal tooth. www.indiandentalacademy.com
  • 6. • Anomalies of tooth size:- In order to have normal occlusion there should be harmony between tooth size & arch length & also between tooth present between in each arches. An increase in tooth size causes crowding in the arch & decrease in teeth size causes spacing in the arch www.indiandentalacademy.com
  • 7. • Anomalies of tooth shape:- -presence of peg shaped lateral incisors -presence of abnormally large cingulum on a maxillary incisors. -mandibular 2nd premolar may rarely have an additional lingual cusp. -congenital syphilis may be associated with abnormal tooth form;peg shaped laterals and mulberry molars. -dilaceration, fusion, gemination. www.indiandentalacademy.com
  • 8. • Abnormal labial frenum:- abnormalities of maxillary labial frenum are quite often associated with a maxillary midline spacing. www.indiandentalacademy.com
  • 9. • Prolonged retention of deciduous teeth - undue retention of deciduous teeth beyond the usual eruption age of their permanent successors. - it results in lingual or labial/buccal eruption of permanent teeth. Reasons for delayed retention of deciduous teeth is :- Absence of underlying permanent teeth,endocrinal disturbances, non vital deciduous teeth that do not resorb. www.indiandentalacademy.com
  • 10. • Delayed eruption of permanent teeth Reasons that causes delayed eruption of permanent teeth are; congenital absence of teeth, presence of supernumerary tooth in the path of permanent teeth, presence of heavy mucosal barrier, endocrinal disturbances and presence of non vital deciduous teeth that are not resorb. www.indiandentalacademy.com
  • 11. • Abnormal eruptive path one of the cause of malocclusion is an abnormal eruptive path of eruption which could be due to arch length deficiency, presence of supernumerary teeth retained root fragments or formation of bony barrier. www.indiandentalacademy.com
  • 12. • Ankylosis:- Is a condition wherein a part or whole of the root surace is directly fused to the bone with absence of intervening periodontal membrane. • Dental caries:- proximal caries that not restored causes mesial migration of distal teeth and lead into decrease in arch length. www.indiandentalacademy.com
  • 13. • Improper dental restoration:- Over contoured occlusal restoration may lead to premature contacts leading to functional shift of mandible during jaw closure. Under contoured may cause eruption of antagonist tooth www.indiandentalacademy.com
  • 14. www.indiandentalacademy.com INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com