JVD 2007 deck Flashcards
According to: “Crown restoration of Endodontically Treated Tooth: Lit Review.” Coffman, Visser, Does endodontic treatment change the strength, toughness, or load-to-fracture ratio? Does it make dentin more brittle via desiccation?
No to both! Level of strength an endodontically tx tooth is the same.
According to: “Crown restoration of Endodontically Treated Tooth: Lit Review.” Coffman, Visser,What is one of the leading causes of endodontic failure?
Coronal leakage of restoration
According to: “Crown restoration of Endodontically Treated Tooth: Lit Review.” Coffman, Visser, Teeth treated with good endodontic obturation and good restoration had what % success rate? Good endodontic restoration and poor restoration?
91.4%; 44.1% (restoration more important!)
According to: “Crown restoration of Endodontically Treated Tooth: Lit Review.” Coffman, Visser, What type of crown has the best strength?
Full gold metal crown; better than non-endodontically treated tooth too
According to: “Crown restoration of Endodontically Treated Tooth: Lit Review.” Coffman, Visser, Human study: 1y after obturation with cast restorations what was the success rate (tooth present vs absent)?
91.7%
According to: “Crown restoration of Endodontically Treated Tooth: Lit Review.” Coffman, Visser, Human study: success rate for maxillary premolars % without coronal coverage and with? (1273 teeth) For maxillary molar teeth?
premolars: without coronal coverage 56%, with 93.9%. molars: w/o coronal coverage 50%, with 97.8%
According to: “Crown restoration of Endodontically Treated Tooth: Lit Review.” Coffman, Visser, Endodontically treated teeth without crowns were what times a greater rate of being lost than crowned teeth?
6 times
According to: “Crown restoration of Endodontically Treated Tooth: Lit Review.” Coffman, Visser, 1,462,936 endodontically treated teeth: 97% present >8y later. Of the failed teeth (3%) what % had no full crown coverage?
85%
According to: “Crown restoration of Endodontically Treated Tooth: Lit Review.” Coffman, Visser, What is better: full coronal coverage or cusp coverage?
Full coronal coverage
According to: “Crown restoration of Endodontically Treated Tooth: Lit Review.” Coffman, Visser, Was composite or amalgam better for restorations?
composite
According to: “Crown restoration of Endodontically Treated Tooth: Lit Review.” Coffman, Visser, What is the average bite force for a dog? When do these forces increase the most?
20-937N (1 pound of force=4.4N); increase when all four canines are used in a pulling motion
According to: “Crown restoration of Endodontically Treated Tooth: Lit Review.” Coffman, Visser, What is the maximum pulling force in a dog?
480-1126N
According to: “Crown restoration of Endodontically Treated Tooth: Lit Review.” Coffman, Visser, Human forces? Weakest/strongest over which teeth?
244-1246N. Weakest 146N incisors; Strongest 306N molars
According to: “Crown restoration of Endodontically Treated Tooth: Lit Review.” Coffman, Visser, Which teeth in humans are most susceptible to irreversible damage when no crown is placed?
Posterior teeth; w/o crowns at 1, 2, and 5y post treatment were 96%, 88% and 36% successful, respectively
According to: “Crown restoration of Endodontically Treated Tooth: Lit Review.” Coffman, Visser, 41 crowns on canine teeth in 18 working dogs reported success rate of _____ for crown restoration. Overall success rate was ___?9/81 teeth received a metal crown. Of these how many were successful?
88%; 69% overall success rate; 8/9 successful with metal crowns
According to “Validation of a New Dental Plaque Quantification Method in Dogs” What are the benefits of GCPI over logan boyce
allows for more reliable quantification, awake animals, measures plaque at gingival margin, where relevance is
documented (rather than whole tooth surface)
According to “Validation of a New Dental Plaque Quantification Method in Dogs” How is the GCPI calculated?
measure gingival margin on maxillary 3-9 and mandibular 4, 6, 7, 8 from mid point mesial to midpoint distal using a special
gingival contour probe (rounded to nearest mm). Measure legth of this contour covered by plaque. Total both of these numbers and represent score as a percentage of gingival contour covered with plaque.
According to “Tooth Preparation and Impression for Full Metal Crown Restoration” What type of margin is recommended for crowns in animals?
Chamfer Margin
According to “Tooth Preparation and Impression for Full Metal Crown Restoration”What depth should the initial cut at the margin of the tooth be?
0.5-1 mm
According to “Tooth Preparation and Impression for Full Metal Crown Restoration”What teeth are most commonly prepared for crown placement?
Canine teeth and maxillary 4th Premolar
According to “Tooth Preparation and Impression for Full Metal Crown Restoration”What should be avoided in your preparation?
Unsupported Enamel, undercuts, pyramid shaped canine teeth
, uneven defects in the margin
According to “Osseous Surgery to Augment Treatment of Chronic Periodontitis of Canine Teeth in a Cat” What common signs of PD dz are unique to felines?
buccal bone expansion, alveolar osteitis, canine tooth
extrusion/ supereruption
According to “Osseous Surgery to Augment Treatment of Chronic Periodontitis of Canine Teeth in a Cat” Why was osseous resective surgery employed?
Most reliable/predictable pocket reduction technique
According to “Osseous Surgery to Augment Treatment of Chronic Periodontitis of Canine Teeth in a Cat” What is the most important determinant of periodontal disease?
Genetics
According to “Orthodontic Correction of Base Narrow Canine in a Cat” Wettering, the case report references a cat with LV 304 and Class II malocclusion that had an acrylic inclined plane placed. What are all the treatment options for 304?
CRA, VPT; surgical repositioning; exodontia; orthodontics
According to “Orthodontic Correction of Base Narrow Canine in a Cat” Wettering, at what percent of the mouth being open was the acrylic set to contact the mandibular canine teeth?
25%
According to “Orthodontic Correction of Base Narrow Canine in a Cat” Wettering, What angle is the inclined plane set to mesiobuccal tipping?
~60 degrees
According to “Orthodontic Correction of Base Narrow Canine in a Cat” Wettering, Acrylic inclined plane was only left on for 2 weeks. Why was the typical 1 month retainer period post orthodontic movement not used in this case?
Diastema between 203/204 provides a natural retainer
According to “Orthodontic Correction of Base Narrow Canine in a Cat” Wettering, What are the complications associated with LV of 304?
Soft tissue trauma, ONF, TMJ problems
According to “Orthodontic Correction of Base Narrow Canine in a Cat” Wettering, What are some causes of base narrow mandible?
RT/DT, retrusive/brachygnathic mandible or true “base narrow mandible (too narrow)
According to “Orthodontic Correction of Base Narrow Canine in a Cat” Wettering, what are reasons to keep and not extract the mandibular canine teeth?
Structural support of the jaw; keep the tongue in the mouth
According to “Orthodontic Correction of Base Narrow Canine in a Cat” Wettering, What are complications of CRA, VPT?
Can still have pulp death due to infection from restoration leakage/loss. If apexogenesis does not occur cannot RCT must extract!
According to “Orthodontic Correction of Base Narrow Canine in a Cat” Wettering, what are the 2 mechanisms of orthodontic movement (theories)?
Piezoelectric: force applied to bone leads to induction of bony remodeling. More accepted: pressure-tension: pressure applied to PDL, blood flow on pressure side decreases, flow on tension side increases, changes in blood flow result in chemical signals to osteoclasts/blasts to remodel bone by removing on pressure side and placing on tension side.
According to “Orthodontic Correction of Base Narrow Canine in a Cat” Wettering, What is the benefit to fixed orthodontic appliances? Con?
Effective, easy. Con: second anesthesia to remove it, animals that chew (dogs)
According to “Orthodontic Correction of Base Narrow Canine in a Cat” Wettering, what type of orthodontic forces applied with this acrylic inclined plane?
Passive intermittent forces
According to “Orthodontic Correction of Base Narrow Canine in a Cat” Wettering, what is a con to cast appliances in orthodontics?
Teeth must be fully erupted at the time of impressions. Expansion screw, quad-helix, W-wire cross midline of the mouth (bulky, do not allow continued jaw growth). Cannot move only 1 tooth!
According to “Orthodontic Correction of Base Narrow Canine in a Cat” Wettering, Why was the inclined plane placed bilaterally?
to prevent lateral shift of the mandible (keep 404 in neutral position)
According to “Orthodontic Correction of Base Narrow Canine in a Cat” Wettering, What is the downfall of a telescoping inclined plane?
allows maxillary growth, but K9 teeth must be fully erupted (b/c of impressions) unless chair side
According to “Orthodontic Correction of Base Narrow Canine in a Cat” Wettering, direct acrylic inclined plane provides what other benefit?
decrease time/expense of dental lab fabrication; movement of 1 tooth; easy to apply; generally safe
According to Foundations article: “Veterinary Dentistry Nomenclature,” name classifications of mobility
Stage 0: physiologic- 0 to 0.2mm; Stage 1: 0.2-0.5mm; Stage 2: 0.5 to 1.0mm; Stage 3: >1.0mm
According to Foundations article: “Veterinary Dentistry Nomenclature,” Define enamel infarction vs fracture
Infarction: incomplete crack of enamel with no tooth loss. Enamel fracture: fracture with loss of crown in enamel only
According to Foundations article: “Veterinary Dentistry Nomenclature,” define classifications of fx.
CCF, UCF, CCRF, UCRF, RF
According to Foundations article: “Veterinary Dentistry Nomenclature,” know mesial/distal, palatal/lingual, rostral/caudal
Yup.
According to “Surgical Management of a Compound Odontoma in a Dog” by Klima and Golstein, what are tumors associated with an unerupted tooth?
Odontoma (compound/complex), dentigerous cyst, ameloblastoma, cementoblastoma, myxoma or radicular cyst.
According to “Surgical Management of a Compound Odontoma in a Dog” by Klima and Golstein, what is the treatment of choice for an odontoma?
Removal of all bony/dental remnants, unerupted teeth and enucleation of any cystic lining
According to “Surgical Management of a Compound Odontoma in a Dog” by Klima and Golstein, what is an odontoma?
a benign oral tumor arising from odontogenic epithelium and ectomesenchyme
According to “Surgical Management of a Compound Odontoma in a Dog” by Klima and Golstein, is an odontoma a true neoplasm?
No. It is a hamartomous process per WHO; developmental abnormality or malformation
According to “Surgical Management of a Compound Odontoma in a Dog” by Klima and Golstein, what are the 2 types of odontomas?
Complex: disorganized odontogenic structures (dentin, pulp, cementum, enamel) with no formed tooth; compound: contains identifiable tooth-like structures (denticles) within a fibrous stroma. “A pound of denticles.”
According to “Surgical Management of a Compound Odontoma in a Dog” by Klima and Golstein, what embryologic structures are needed for normal tooth development (odontogenesis)?
enamel organ, dental papilla, dental follicle
According to “Surgical Management of a Compound Odontoma in a Dog” by Klima and Golstein, what are the four layers of enamel organ?
outer dental epithelium, stellate reticulum, stratum intermedium, inner dental epithelium
According to “Surgical Management of a Compound Odontoma in a Dog” by Klima and Golstein, what is important about the inner dental epithelium (layer of enamel organ)?
It lies along basal lamina separating from dental papilla; allows for differentiation of ectomesenchyme into odontoblasts; dentin formation along dental papilla induces differentiation into functional ameloblasts leading to enamel deposition along dentinal surface of crown
According to “Surgical Management of a Compound Odontoma in a Dog” by Klima and Golstein, what is the function of Hertwig’s root sheath?
allows for odontoblastic differentiation and dentin formation of tooth root structure. When tooth root development is almost complete, the root sheath ruptures and allows mesenchymal cells of dental sac and developing PDL to contact newly formed dentin (allows for differentiation into cementoblasts and deposition of cementum)
According to “Surgical Management of a Compound Odontoma in a Dog” by Klima and Golstein, what do remnants of Hertwig’s root sheath become?
Cell rests of Malaise; persist throughout life in PDL close to root surface
According to “Surgical Management of a Compound Odontoma in a Dog” by Klima and Golstein, what is the clinical significance of cell rests of Malassez?
thought to be source of development of epithelial odontogenic tumors
According to “Surgical Management of a Compound Odontoma in a Dog” by Klima and Golstein, what is the primary tissue within a complex odontoma?
dentin
According to “Surgical Management of a Compound Odontoma in a Dog” by Klima and Golstein, what is one reason an unerupted tooth is often diagnosed concurrently with an odontoma?
Bc the odontoma blocks normal tooth eruption
According to JVD Summer 2007 “Reattachment of Tooth Fragment: An In Vitro Study” Why did they do this study???
Who knows.
According to JVD Summer 2007 “Reattachment of Tooth Fragment: An In Vitro Study”
What type of post was the strongest for tooth fragment re-attachment?
Nickel Chromium cast post
According to JVD Summer 2007 “Reattachment of Tooth Fragment: An In Vitro Study”
Were the re-attahced fragments stronger, weaker or equivocal to the unfragmented teeth?
Weaker by 55-90+ %
According to JVD Summer 2007 “Reattachment of Tooth Fragment: An In Vitro Study”
Why were the teeth sectioned as opposed to fractured prior to re-adaptation?
Sectioning provided a reliable, consistent fragment for testing, fracture lines were unpredictable regardless of the method used
to fracture the teeth.
According to JVD Summer 2007 “Composite Restoration of Enamel Defects”
What are thee three principles of restortives?
~Remove all abnormal tooth substance without weakening
tooth structure
~Extension for prevention, remove undermined or diseased
enamel and dentin that will predispose to further defects
~The design of the restoration should facilitate filling, finishing and
retention
According to JVD Summer 2007 “Composite Restoration of Enamel Defects”
Why are bevelled edges recommended ?
To increase the surface area of contact and facilitate retention
According to JVD Summer 2007 “Composite Restoration of Enamel Defects”
When are bevelled edges contraindicated?
On occlusal surfaces
According to JVD Summer 2007 “Composite Restoration of Enamel Defects”
Why was a flowable composite used? (list 3 favourable properties)
strength, flexibility, ease of use (handling), controlled setting time,
aesthetics
According to JVD Summer 2007 “Evaluation of Periodontal Changes Following Intra-Alveolar Prosthesis for Maxillary Cheek Tooth Extraction in Ponies”
In the first twelve months following extraction where were perio
changes found?
in the 06-07 cheek teeth
According to JVD Summer 2007 “Evaluation of Periodontal Changes Following Intra-Alveolar Prosthesis for Maxillary Cheek Tooth Extraction in Ponies”
In the months 12-24 what happened respectively to the rostral and caudal cheek wrt periodontal disease?
rostral teeth improved, caudal teeth got worse
According to JVD Summer 2007 “Evaluation of Periodontal Changes Following Intra-Alveolar Prosthesis for Maxillary Cheek Tooth Extraction in Ponies”
What changes were seen in maxillary teeth on both control and treatment sides?
widening of interproximal space, diastemata formation, food trapping, gingival swelling, pocketing
According to JVD Summer 2007 “Evaluation of Periodontal Changes Following Intra-Alveolar Prosthesis for Maxillary Cheek Tooth Extraction in Ponies”
Was use of an intraalveolar bone graft prosthetic material
effective for preventing tooth drift?
Nope.
According to “Mandibular Fx Repair in a Harbor Seal” Lewer, Brown, et al, what type of fracture and initial stabilization was attempted? Term
Left rostral mandibular fracture btw 305/306 with symphyseal laxity. First repair involved interdental and inter fragmentary cerclage wiring.
According to “Mandibular Fx Repair in a Harbor Seal” Lewer, Brown, et al, the initial repair failed with wires coming loose. What was the next attempted fracture repair?
Removal or tightening of loose wire, interdental wiring and acrylic splint.
According to “Mandibular Fx Repair in a Harbor Seal” Lewer, Brown, et al, when did the fracture finally heal/appliance removed?
At 6 mo recheck: lysis, left on. At 12 mo recheck very small amy of bony callous. Splint and wire removed.
According to “Mandibular Fx Repair in a Harbor Seal” Lewer, Brown, et al, what are methods of internal and external fixation for mandibular fracture repair?
Internal: bone plates, screws, interdental or inter fragmentary wiring, cerclage wires. External: Ex fix, acrylic splint, tape muzzles– not rigid fixation.
According to “Mandibular Fx Repair in a Harbor Seal” Lewer, Brown, et al, in equines, what is the best method of rigid fixation?
dynamic compression plating for comminuted fx. Interdental wiring and splints may be adequate for more straight forward fractures.Definition
According to “Mandibular Fx Repair in a Harbor Seal” Lewer, Brown, et al, where are plates typically applied? where is the actual tension surface of the mandible?
Plates and ex fixes applied to ventral or ventrolateral compression surface, not the dorsal/alveolar border aspect of the mandible.
According to “Mandibular Fx Repair in a Harbor Seal” Lewer, Brown, et al, what is a benefit to acrylic splinting?
Provides static compression of tension surface and allows for dynamic compression of ventral surface during mastication. Does not involve medullary canal so no disruption of tooth roots/mandibular canal.
According to “Oral Soft Tissue Anatomy in Dog/Cat” Eubanks, what is the point at the top or bottom of the vestibule oral mucosa turns toward the alveolar ridge?
Mucobuccal or mucolabial fold. Pouch formed by the reflection is the fornix.
According to “Oral Soft Tissue Anatomy in Dog/Cat” Eubanks, what are the attachments of the folds of mucosal tissue that attach the lips and gums called? where are they?
Frenula; maxillary (central incisors) and mandibular bilaterally – labial frenulum
According to “Oral Soft Tissue Anatomy in Dog/Cat” Eubanks, describe the path of the parotid salivary duct.
Crosses the lateral surface of the masseter m, course beneath the buccal mucosa and opens as a single orifice onto a papilla over the distal root of PM4.
According to “Oral Soft Tissue Anatomy in Dog/Cat” Eubanks, are there other salivary structures on the maxillary buccal mucosa aside from the parotid papilla?
Zygomatic (caudal to parotid). One to 4 accessory ducts