Unit 3 part 1 Flashcards
What are the 3 stages of Odontogenesis?
Bud
Cap
Bell
What is present in the bud stage?
Inner enamel
Outer enamel
What is present in the cap stage?
IE OE Stellate Reticulum Dental Papilla Dental Sac
What is present in the bell stage?
IE OE Stellate Reticulum Dental Papilla Dental Sac Stratum Intermedium
What invaginate s to become a tooth bud?
Dental lamina
What provides nourishment to the IE and OE?
Stellate reticulum
The stratum Intermedium lies between what 2 structures?
Stellate reticulum
IE
The dental papilla makes what part/s of the tooth?
Dentin
Pulp
Baby teeth give rise to adult teeth through a ——– ——-?
Successional lamina
What teeth are Non-Succedaneous?
Adult molars
What part of the tooth development turns into ameloblasts?
Inner Enamel Epithelium
What part of the tooth development becomes odontoblasts?
Dental papilla closest to IEE
The cells that form odontoblasts start out as ———- cells?
Mesenchymal
Ameloblasts and odontoblasts lay down a ——— layer that ——– ——— stick to?
Muco- polysaccharide
Hydroxyapatite crystals
Enamel is —–% inorganic?
96
Dentin is around ——% inorganic?
70
——-dentin is before tooth eruption occurs?
Primary
Secondary dentin is made ——- the tooth erupts?
After
What is the term for pieces of retained embryonic tissue that get turned on at a later time?
Rests of mallisae
An Ameloblastoma arises from?
IEE or ameloblasts
Ameloblastomas develop due to a —— or by ——- causes?
Trauma
Iatrogenic
80% of Ameloblastoma occur in the ——?
Mandible
Ameloblastomas cause ——- of mandible with a thinning of the —— —–?
Expansion
Cortical plate
Ameloblastomas are ——- destructive and the patient may loose——?
Locally
Teeth after excision
What is the term for multiple small teeth?
Compound odontoma (Dentricles)
The dentricles in a compound odontoma are surrounded by?
Fibrous sac
A complex odontoma is ——– and seen as a ———-?
Rare
Big mass of dental tissue
If you saw a cyst/abscess on an x-ray and removed it an biopsied it and it came back as tooth forming mesenchymal tissue it would be called a?
Odontogenic fibroma
An odontogenic cementoma comes from?
Active cemental or mesenchymal tissue
An odontogenic cementoma appears in what area?
Apice of root
The pulp exits the —– —–
Apical foramen
The bulk of the pulp is located?
Pulp chamber
What is a common reason RCT fail?
Accessory foramen
What problem USUALLY causes apical problems?
Trauma
A periapical abscess is due to ——- of pulp exiting the foramen
Necrosis
What causes symptoms of tooth sensitivity?
Lack of blood flow due to inflammation process due to bacterial infection
If you see an abscess clinically the pulpitis is of ——– duration
Chronic
If an abscess is left long enough it can heal itself and become a?
Periapical granuloma
The drainage site of an abscess is termed?
Fistula
Acute pulpitis is ——- and turns into?
Irreversible
Pulpal abscess
——– is used to describe an abscess after it goes beyond the cortical plate?
Cellulitis
A chronic open pulpitis is due to a —– in the tooth where the —— is exposed and the body heals itself and forms ——- to protect itself?
Break
Pulp
Granular tissue covering
An apical cyst is more ——– and comes from ——–
It won’t go away unless you remove it?
Circular
Rests of malassez
