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Eruption

Eruption. By: A.RashedM. Assistant Professor of Pediatric Dentistry. How eruption happens?!. Elongation of tooth root Forces exerted by vascular tissues around the tooth Hormonal influnces Alveolar crest resorption Growth and pull of periodontal membrane … .

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Eruption

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  1. Eruption By: A.RashedM. Assistant Professor of Pediatric Dentistry

  2. How eruption happens?! • Elongation of tooth root • Forces exerted by vascular tissues around the tooth • Hormonal influnces • Alveolar crest resorption • Growth and pull of periodontal membrane • …

  3. Eruption and toothdevelopment. 1. the crown cal. Completes the toothbeginsits migration 2. 2/3 of root cal. Completes the toothemergesinto soft tissue 3. ¾ of root cal. Completes the toothemergesinto oral cavity

  4. Whydoesemergence of teethhappenatdifferent times?

  5. Eruption?!Emergence?!

  6. Problemsassociatedwitheruption in primaryteeth Illingworth and Tasanenstudy: YES NO Daytimerestlessness Infection FingersuckingTemperaturerise Rubbing of the gumDiarrhea Increase in droolingCoughing Someloss of appetiteSleepdisturbances

  7. What if signs not related to eruption be mistaken as eruption signs?!

  8. What can we do to releive pain and difficulty?

  9. What is this?!why does it happen?Treatment?

  10. Shedding of primary teeth,eruption of permanent teeth

  11. Overretainedprimaryteeth whymayprimaryteeth over retain? How shouldtheybetreated?

  12. What do you see?What should we do?

  13. What do you see?What should we do?

  14. What do you see?What should we do?

  15. Ankylosisinfraocclusion

  16. Are all ankylosed teeth, necessarily infraoccluded?

  17. Are all infraoccluded teeth, necessarily ankylosed?

  18. How caninfraocclusion and ankylosisbedifferentiated? • Radiographs • Percussion test

  19. What problems may infraoccluded teeth cause?

  20. Treatment in primaryteeth? 1. Withsuccessor 2. Withoutsuccessor

  21. Major contrastsbetweenprimary and permanent teeth • Anteriorteeth: higher crown width (M-D)/ crown length 2. Anteriorteeth: narrower and longer rootswithwide crowns (cervical thirdview)-comparatively- • Primarymolar: slender and longer rootsthatflarebeyond the outline of the crown –comparatively- There is no trunk, eachrootdirectlycomesfrom the crown 4. More prominent cervical ridge: buccal, lingual, labial 5. Primarymolar: more slenderattheir cervical portion mesiodistally (bulby)

  22. Major contrastsbetweenprimary and permanent teeth 6. Primarymolar: : buccal and lingual surfaces are flatter whichresult in a narrower occlusal surface (bulby) 7. Primarymolars: Buccal cervical ridges are much more pronouncedespecially ‘D’ • Less pigmentation, and whiter 9. The pulpchamberisrelativelylarger in all dimensions, pulphorns are high 10. The enamelisrelativelythin, the dentine thicknessislimited 11. Primaryteeth are smallerthan permanent teeth

  23. Lunch and sleep!

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