Term
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Definition
| ___ ___ is an epithelial thickening that begins at 6 weeks of prenatal life which progresses to bud stage. |
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Term
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Definition
| ___ ___ follows the dental lamina and differentiates into 20 primary tooth buds. |
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Term
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Definition
| During the ___ stage the DEJ forms. Enamel and dentin are laid down and the dental lamina eventually disintegrates. |
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Term
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Definition
| ___ ___ follows the bell stage when the CEJ begins to form. The enamel organ proliferates to form a structure known as Hertwig's Sheath. |
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Term
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Definition
| ___ ___ is formed by the enamel organ. This signals the final apposition of dentin and cementum to be laid down, thereby completing root development. |
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Term
| 1. dental lamina; 2. bud stage; 3. cap stage; 4. bell stage; 5. root development |
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Definition
| Explain the 5 steps of tooth development. |
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Term
| deciduous teeth = 1st few months of fetal life; succedaneous teeth = between 5-10 months after birth; non-succedaneous teeth = between 4 fetal months and 5 years of age |
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Definition
| When are deciduous teeth, succedaneous teeth, and non-succedaneous teeth initiated? |
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Term
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Definition
| ___ eruption is the emergence of tooth into the oral cavity until it meets an antagonist. |
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Term
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Definition
| ___ eruption is the continual process of adjustment to changing occlusal relationships that occurs after active eruption. |
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Term
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Definition
| Passive eruption leads to ___-eruption which is when the occlusal table of a tooth is above the occlusal plane. |
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Term
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Definition
| ___ ___ is the enamel cuticle/keratin membrane that covers an erupting tooth. It usually wears away during eruption and may need to be mechanically removed. |
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Term
| deciduous teeth = approx 1 year after eruption (usually age 3); permanent teeth = 3 years for crown, 3 years for root formation |
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Definition
| When are the root's of deciduous and permanent teeth completed? |
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Term
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Definition
| T/F: The process of losing a tooth begins about 1 year prior to the loss of the tooth. |
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Term
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Definition
| ___ is the fusion of the root to the bone and resorption does not occur. This occurs most often in deciduous molars. |
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Term
| Initiation, proliferation, histodifferentiation, moprhodifferentiation, apposition (I personally hate moldy apples) |
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Definition
| List the 5 stages of tooth development. |
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Term
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Definition
| ___ includes dental lamina and bud stages. It may affect the presence or absence of teeth. |
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Term
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Definition
| ___ includes bud, cap and bell stages and may affect size and proportions of teeth. |
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Term
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Definition
| ____ includes advanced cap stage through bell stage and may affect enamel and dentin forming cells. |
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Term
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Definition
| ___ includes bud, cap and bell stages and may affect size and shape of tooth. |
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Term
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Definition
| ___ includes bell stage through root formation and may affect depth and integrity of enamel and dentin. |
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Term
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Definition
| The most common form of ___ is a peg lateral. The second most common is a 3rd molar. It is often a familial trait and may be isolated or generalized. |
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Term
| true generalized microdontia, morphodifferentiation stage |
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Definition
| ___ ____ ___ is when a regular sized jaw has actually smaller teeth. It is very rare and is usually associated with pituitary dwarfism and cancer therapy during the ____ stage. |
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Term
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Definition
| ___ is abnormally large teeth often seen in incisors and mandibular 3rd molars. |
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Term
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Definition
| ___ is when one side is affected with macrodontia and the other side is unaffected. |
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Term
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Definition
| ___ is an unusually large pulp chamber that may extend into the root area of a normal sized tooth. AKA bull or prism tooth |
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Term
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Definition
| Hypercementosis is most often seen on permanent ____ and occurs after eruption. |
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Term
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Definition
| ___ is the complete absence of teeth. Sex-linked genetic trait that is very rare. |
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Term
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Definition
| ___ is a congenital absence of 1-4 teeth. |
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Term
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Definition
| ___ is used for more than 4 congenitally missing teeth. |
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Term
| 1. perm 3rd molars; 2. perm max laterals; 3. perm mand. 2nd premolars |
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Definition
| Name the 3 most commonly missing teeth. |
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Term
| mandibular central incisors |
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Definition
| What are the most common primary teeth missing? |
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Term
| hyperdontia/supernumerary teeth |
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Definition
| ___ is less frequent than hypodontia. It affects permanent dentition most frequently and usually the maxillary arch |
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Term
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Definition
| ___ is hyperdontia that occurs when a tooth is positioned mesial to 2 teeth. |
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Term
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Definition
| ___ is when a 4th molar is positioned B or L to the 3rd molar. ___ is when a 4th molar is positioned D to the 3rd molar. |
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Term
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Definition
| ___ __ ___ is a tooth within a tooth most common in maxillary laterals and may clinically appear as a deep crevice or accentuated L pit. |
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Term
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Definition
| ___ is when a crown and root are not in linear relationship. |
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Term
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Definition
| ___ is when the root structure ONLY is distorted. Same as dilaceration however ocurs later in development and the bends tend to be sharp. |
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Term
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Definition
| ___ is when a tooth is incompletely divided. It affects primary more than permanent. It is a tooth with 1 root and a clefted crown. |
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Term
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Definition
| ___ is the union of two adjacent teeth. So the tooth has 2 roots and 2 pulp cavities. It is most often seen in anterior teeth. |
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Term
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Definition
| ___ is when two or more teeth join through the cementum only. Often seen in permanent molars (esp max) |
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Term
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Definition
| ___ ___ are a result of prenatal syphilis. Incisors look like notched screwdriver, molars look like mulberries. |
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Term
| L of mand 1st pre, DL of max molars, D of mand 1st molar |
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Definition
| Missing cusps are most often seen on the __ cusp of the mandibular 1st premolar, ___ cusp of the maxillary molars, and __ cusp of the mandibular 1st molars. |
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Term
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Definition
| __ __ is enamel hypoplasia of a permanent tooth. Usually caused by trauma to tooth bud or periapical infection around deciduous tooth. |
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Term
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Definition
| Teeth with __ __ are characterized by blanched, snow-capped, yellow-brown, pitted or grooved crowns. It ranges from complete abscence of enamel to enamel that never fully matured. (hypoplastic, hypocalcified, hypomaturation) |
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Term
| dentinogenesis imperfecta |
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Definition
| ___ ___ is when the crown of a tooth exhibits an opalescence/bluish-brown. There abnormal scalloping at the DEJ and enamel tends to separate from the dentin. |
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Term
| primary arch is oval and at 9 months the width is established |
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Definition
| The __ arch is oval and by the age of ___ months the width is established for both deciduous and permanent dentitions. |
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Term
| result of alveolar arch growth not basal bone growth |
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Definition
| Arch width increased only slightly with the eruption of the permanent teeth as a result of ___ ___ growth, not __ __ growth. |
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Term
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Definition
| Total arch length and growth is toward the (mesial/distal). |
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Term
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Definition
| The perm max and mand anterior are approx __ mm wider MD than primary anteriors. This is the Incisor Liability. |
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Term
| interdental spaces = 1mm; canine spaces ant to max canine, posterior to mand canine |
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Definition
| There are __mm interdental spaces between the primary incisors. There are also canine spaces (ant/post) to primary maxillary canine and (ant/post) to mandibular primary canine. |
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Term
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Definition
| T/F: The maxillary canine space is larger than the mandibular. |
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Term
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Definition
| T/F: The maxillary leeway space is larger than the mandibular. |
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Term
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Definition
| ___ mesial shift is when the primary dentition erupts into a flush terminal plane then the erupting 1st permanent molars drift into Class I relaxation using canine spaces. Mandibular drift is greater than maxillary drift. |
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Term
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Definition
| ___ mesial shift occurs when there are no canine spaces and the 1st molars/premolars erupt into Class I relation using Leeway space. The mandibular space is greater than the maxillary space. |
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Term
| loss of primary anterior = 8-9years; eruption of mandibular canine = 9-10yrs |
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Definition
| The Ugly duckling stage occurs at age __-__ with the loss of the primary anteriors and eruption of permanent incisors followed by the eruption of the mandibular canine at approx age __-__. |
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Term
| Crown calcification begins --3yrs--> crown calcification complete --3yrs--> Eruption --3yrs--> Root completion |
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Definition
| Explain the rule of 3s from Dr. Molinari. |
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Term
| overjet is horizontal, overbite is vertical |
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Definition
| Overjet is (horizontal/vertical). Overbite is (horizontal/vertical). |
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Term
| Centrals 6.5-8; Laterals 7-9; 1st molars 12-16; canines 16-21; 2nd molars 21-30 |
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Definition
| Eruption dates for Primary Teeth: Centrals ___-___ months; Laterals ___-___ months; 1st molars ___-___ months; Canines ___-___ months; 2nd Molars ___-___ months. |
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Term
| Primary maxillary central incisors |
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Definition
| Primary (max/mand) (central/lateral) incisor is the only anterior tooth where the MD width is greather than the IC length. |
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Term
| 1st 6-7yrs; 2nd 11-13yrs; 3rd 17-21yrs |
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Definition
| Eruption Dates of permanent mandibular molars: 1st __-__yrs; 2nd __-__yrs; 3rd __-__yrs. |
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Term
| 1st 6yrs, 2nd 12-13 yrs, 3rd 18-25yrs |
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Definition
| Permanent eruption dates for maxillary molars: 1st __ yrs, 2nd __-__ yrs, 3rd __-__yrs |
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Term
| 1st 10-11yrs, 2nd 11-12yrs |
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Definition
| Mandibular 1st premolars eruption = __-__ yrs; 2nd premolars eruption = __-__ yrs. |
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Term
| 1st premolars 10-11yrs; 2nd premolars 11-12yrs |
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Definition
| Maxillary 1st premolars eruption = __-__ yrs; 2nd premolars __-__yrs. |
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Term
| max = 11-12yrs; mand = 9-10 yrs |
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Definition
| Maxillary canine eruption = __-__ yrs; Mandibular canine eruption = __-__ yrs. |
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Term
| mandibular central 6-7 yrs; mandibular lateral 7-8 yrs |
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Definition
| Mandibular central eruption = __-__yrs; Mandibular lateral eruption = __-__ yrs |
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Term
| central = 7-8yrs, lateral 8-9yrs |
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Definition
| Max central eruption = __-__yrs; max lateral eruption = __-__yrs. |
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Term
| 1. maintain stability of arch; 2. prevent food impaction |
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Definition
| Teeth touch interproximally for what 2 reasons? |
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Term
| 1. serve as spillway for food during mastication; 2. aid in self-cleansing mechanism of teeth |
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Definition
| What are the 2 functions of embrasures? |
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Term
| curve of spee ant-post, curve of wilson mediolateral |
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Definition
| The curve of ___ is the anterior-posterior curvature. The curve of ___ is the mediolateral curvature. |
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Term
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Definition
| ____ is the 3D curvature. |
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