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lecture 2 ortho â
ا٠؎اء اÙÙÙ ÙÙØŽÙ ÙØ§Ø¶Ø ٠سÙÙ ð«
displacement of tooth
crown + root position = abnormal
overlapping of teeth
crown position = abnormal
root position = normal
displacement of tooth
crown + root position = abnormal
overlapping of teeth
crown position = abnormal
root position = normal
severe rotation (more than 90 degrees)
Ø§ÙØ³Ù ÙØ§Ø± ١ٚ٠درجة
~treated by FIXED ortho ONLY
mild rotation
~can be treated by removable orthodontic appliance
Overeruption (supraeruption, supraposition, supracclusion)
Infraposition (infraocclusion)
ðŸØ§Ù ØŽÙ infra ÙØ¹Ù٠اÙ٠ا٠below
ðŸØ§Ù ØŽÙ supra ÙØ¹ÙÙ Ø§ÙØ«Ø± ع٠اÙÙØ²ÙÙ
ا٠above
ðŸØ§Ù ØŽÙ retro ÙØ¹ÙÙ ÙÙÙØ±Ø§ ا٠posterior
ðŸØ§Ù ØŽÙ pro ÙØ¹ÙÙ ÙÙØ£Ù
اÙ
ا٠anterior
ðŸØ§Ù ØŽÙ -usion Ù
Ø¹ÙØ§Ùا Ø§ÙØšÙز؎٠ا٠Ù
ÙÙØ¹ Ø§ÙØ³Ù
ðŸØ§Ù ØŽÙ -clination ÙØ¹Ù٠درجة Ù
ÙÙØ§Ù Ø§ÙØ³Ù ا٠اÙtilt Ù
Ø§ÙØªÙ
âââââââââââââââââââââ
ðINFRAPOSITION (INFRAOCCLUSION) = Ø§ÙØ³Ù ÙØ§Ø²Ù ØªØØª Ù
Ø³ØªÙØ§Ù Ø§ÙØ·ØšÙعÙ
- tooth is below occlusal plane
âÙÙØŽ Ø Ù
Ù
Ù٠ؚسؚؚ عادة Ù
ضرة deleterious habit
ا٠ؚسؚؚ ankylosis ؚعÙÙ Ø§ÙØ³Ù Ù
Ø¬ÙØš ØšØ§ÙØ¹ØžÙ
âââââââââââââââââââââ
ðOVERERUPTION (SUPRAERUPTION/SUPRAPOSITION/SUPRAOCCLUSION) =
ðÙÙÙ٠س٠Ù
ا Ø¹ÙØ¯Ù opposing tooth ÙÙ Ù
ØØ¯ ÙØ·Ø®Ù ÙÙ
Ù ÙØµÙر إطؚاÙ
âšÙÙØ°Ø§ ÙØšÙÙ ÙØ³ÙÙ erupt Ù ØØªÙ ÙØªØ¬Ø§Ùز/ÙØ¹ØšØ± اÙocclusal plane
âââââââââââââââââââââ
ðDENTAL RETRUSION = Ø§ÙØ³Ù Ù
Ù
اÙ٠٠اÙÙ
ا ÙÙØ· Ø±Ø§ØØ¹ ÙÙÙØ±Ø§
âlong axis = normal inclination
âtooth position = more posterior
âââââââââââââââââââââ
ðDENTAL RETROCLINATION = Ø§ÙØ³Ù ÙÙØ³ Ù
ÙÙØ¹Ù ؚس Ù
اÙ٠ؚإتجا٠اÙÙÙÙÙÙ
âlong axis = tipped labiolingually
âtooth position = normal
âââââââââââââââââââââ
ðDENTAL PROCLINATION = Ø§ÙØ³Ù ÙÙØ³ Ù
ÙØ§Ù٠ؚس Ù
اÙÙ ÙÙØšÙÙÙ
âlong axis = tipped labially
âtooth position = normal
âââââââââââââââââââââ
ðDENTAL PROTRUSION = Ù
ÙÙØ§Ù Ø§ÙØ³Ù ثاؚت Ù
Ù
ØªØºÙØ± ؚس Ø§ÙØ³Ù ÙÙÙ Ù
ØªØØ±Ù ÙÙÙØ¯Ø§Ù
âlong axis = normal inclination
âtooth position = more anterior
âââââââââââââââââââââ
ðIMPACTION OF TEETH = Ø§ÙØ³Ù Ù
ÙØžÙر ؚاÙÙÙ
Ù
Ù ÙØØ¯Ù
ØµØ§ÙØ± completely blocked out by other teeth
ð«§Ø¹Ø§Ø¯Ø©Ù ÙØ£Ø«Ø± Ø§ÙØ³Ù اÙÙ ÙØ³ÙÙ eruption اخر ؎٠ؚاÙsegment (عادة٠اÙÙÙÙØ§ÙÙ)
âââââââââââââââââââââ
ðROTATION OF TEETH =
ÙÙØ¹ Ù
٠اÙmalocclusion Ø§ÙØ³Ù ÙÙØ± عÙ٠اÙlong axis Ù
Ø§ÙØªÙ
ð«§Ø§Ùسؚؚ ÙÙ crowding
ð«§ÙÙÙ٠اÙ
ا mild ا٠severe
ðªØ§Ø°Ø§ mild اÙrotation تÙÙ٠اÙÙ Ù
Ù 90 degrees Ù Ø¹ÙØ§Ø¬Ùا Ù
Ù
ÙÙ ÙÙÙÙ Ù
Ù Ø®ÙØ§Ù تÙÙÙÙ
Ù
ØªØØ±Ù removable orthodontic appliance
ðªØ§Ø°Ø§ severe اÙrotation ÙÙÙÙ Ø§ÙØ«Ø± Ù
Ù 90 degrees Ù
treated by fixed orthodontic appliance ONLY
âââââââââââââââââââââ
ðDISPLACEMENT OF TOOTH = Ø§ÙØ³Ù ÙÙÙ (ÙØ±Ø§ÙÙ Ù Ø±ÙØª) Ø·Ø§ÙØ¹ Øš Ù
ÙÙØ¹ ØºÙØ· Ù
Ø«ÙØ§ ؚرÙÙ
ÙÙØ± Ù ÙÙÙØ§ÙÙ Ù
تؚادÙÙÙ
âïžabnormal position of tooth (crown+root) in dental arch
âââââââââââââââââââââ
ðOVERLAPPING OF TEETH = ÙÙØ· اÙÙØ±Ø§ÙÙ Ø·Ø§ÙØ¹ ؚاÙÙ
ÙØ§Ù Ø§ÙØºÙØ·Ø Ø§ÙØ±Ùت ØšØ§ÙØšÙØ²ØŽÙ Ø§ÙØµØÙØ
âïžabnormal position of crown in dental arch, normal position of root in jaw
