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Summary

Samenvatting morfologie

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Samenvatting van alle kenmerken van de tanden. Leeftijdsbepaling Melktanden Afbeeldingen

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  • January 9, 2024
  • 12
  • 2023/2024
  • Summary
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Definitieve snijtanden

Functie
• voedsel snijden
• Articulatie, spraak —> lispelen
• Lip ondersteuning
• Esthetiek
• Geleidt OK tijdens beweging naar voor




Bouw en kenmerken
• 3 vestibulaire ontw. lobben = mamelons
• Incisale slijtage
‣ Boven: linguaal
‣ Onder: vestibulair CBST
• M en D raaklijnen convergeren nr apicaal
• D meer convex
‣ Uitz: COST —> M en D even recht
• M inc. hoek = recht vs D inc. hoek = stomp
‣ Uitz: COST —> M en D even recht
• D contactpunt meer naar cervicaal
‣ Uitz: COST —> M en D even hoog
LBST
• Wortel is breder V-L dan M-D
‣ Uitz: CBST —> even breed
• Wortel buigt naar D
• Wortel langer dan kroon
• Proximale vlakken convergeren naar L
• Marginale kammen convergeren naar cingulum
• V en L: cervixlijn convex nr apicaal COST

• M en D: cervixlijn concaaf nr apicaal
• L outline is S-vormig (fossa en cingulum)




LOST

, Bovensnijtanden
Centraal (11 en 21) Lateraal (12 en 22)
Vierkant (M-D >>> V-P) Langwerpig (M-D > V-P)
Rechtere inc. hoeken Afgeronde inc. hoeken
Inc. Rand recht Inc. Rand loopt schuin af nr D
Wortellengte/kroonlengte = klein Wortellengte/kroonlengte = groot
Wortel bijna recht Wortel buit naar D
Cingulum nr D Cingulum Centraal
Breed cingulum Smal maar prominent cingulum
Ondiepe fossa Diepe fossa
Langere M marg kam Langere M marg kam
V contour naar D V contour symmetrisch




Ondersnijtanden
Centraal (31 en 41) Lateraal (32 en 42)
Contactpunt M = D Contactpunt D meer nr apicaal
Inc. hoeken = recht D inc. hoek afgerond
Inc. rand symmetrisch Inc. rand buigt D sterk naar L (DL - twist)
Rechte symmetrische kroon Kroon gekanteld naar D en minder symm.
Cingulum centraal cingulum nr D
M en D marg. Kam = M marg. Kam is langer




Boven vs onder
Boven Onder
Cingulum en fossa meer uitgesproken Gladder L vlak
Ronde wortels Wortels V-L > M-D
Bijna vierkant Smaller dan hoog
M en D outline meer gebogen M en D outline rechter
Prox. Contactpunten meer cervicaal Prox. Contactpunten meer incisaal
Inc. Slijtage P Inc. Slijtage V

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