Operative Dent Flashcards
In Dixon’s 2014 study “Critical evaluation of ex vivo restoration of carious equine maxillary cheek teeth infundibulae following high-pressure gas and micro-particle abrasion”, at what depth was there a correlation with incomplete restoration of an infundibula?
TVJ 2014
15mm
In Dixon’s 2014 study “Critical evaluation of ex vivo restoration of carious equine maxillary cheek teeth infundibulae following high-pressure gas and micro-particle abrasion”, what % of deep infubibulae were incompletely restored?
TVJ 2014
54%
This study has demonstrated that high-pressure abrasion with aluminium hydroxide particles is ineffective at removing food debris and carious dental material from carious infundibulae >15 mm in depth
In Suske’s paper “Infundibula of equine maxillary cheek teeth Part 2: Morphological variations and pathological changes”, how prevalent was cemental hypoplasia at the occlusal and subocclusal level on CT respectively?
TVJ 2016
Cemental hypoplasia was present in at least one infundibulum in CT of 351/688 (51%) cases at the occlusal surface and in CT of 100/177 (56%) cases at a subocclusal level
In Suske’s paper “Infundibula of equine maxillary cheek teeth Part 2: Morphological variations and pathological changes”, what was the most commonly affected tooth by cemental hypoplasia (triadan position)
TVJ 2016
09s (75% of affected teeth)
In Borkent’s 2016 study “An epidemiological survey on the prevalence of equine peripheral dental caries in the United Kingdom and possible risk factors for its development”, what was the prevalence of PCs in this UK population of horses?
EVJ 2016
51.7%
In contast to Ramzan 2011 on referral cases – 61%
In contrast to other post-mortem studys (3-6%)
In Borkent’s 2016 study “An epidemiological survey on the prevalence of equine peripheral dental caries in the United Kingdom and possible risk factors for its development”, what Triadan positions were more likely affected? Was maxilla or mandible more likely affected?
EVJ 2016
09s-11s
Mand > Maxilla
Peripheral caries preferentially affects the
caudal upper and lower cheek teeth indicating an environmental change in the caudal oral cavity that favours the growth of cariogenic bacteria
In Borkent’s 2016 study “An epidemiological survey on the prevalence of equine peripheral dental caries in the United Kingdom and possible risk factors for its development”, what concurrent dental disorder increased the chances of PC presence the most?
EVJ 2016
Presence of infundibular caries
In Uldahl’s 2019 study “Lesions associated with the use of bits, nosebands, spurs and
whips in Danish competition horses”, which of the following increased the risk of lip commissure lesion?
A. Type of bit
B. Type of bridle
C. Breed of horse
D. Level of competition
EVJ 2019
D. Level of competition
Oral lesions or blood were visible at the commissures of the lips in 9.2% of horses and increased with level of competition but did not differ between bit types or bitless bridles.
In Lundstrom’s case report on “Equine peripheral cemental defects and dental caries: Four case reports”, one case tested the water pH on farm. What was the level detected and what ws the clinical signficance?
EVE 2020
A test of the acidity of the water that supplied the stable showed a pH of 6.2, which is below the critical level for human dental cementum
Water filtration system installed and all horses on farm resolved PCs
What are the 3 main factors to caries development
EVE 2020 Lundstrom
(1) the host (the tooth surface and the salivary factors)
(2) the substrate (diet and feeding regime) and
(3) the microbes of the oral cavity and formation of dental plaque
In Pearce’s paper “Long-Term Follow-Up of Restorations of Equine Cheek Teeth Infundibula (2006–2017)” what teeth and grade of caries were most likely to be treated?
Frontiers 2021
09s, grade 3, mesial INF
In Pearce’s paper “Long-Term Follow-Up of Restorations of Equine Cheek Teeth Infundibula (2006–2017)” what was the most common material used to fill?
Frontiers 2021
dual-cured resin composite (Starfill, Danville, USA) - 80% of procedures layered technique
direct bulk fill (10%) of procedures
In Pearce’s paper “Long-Term Follow-Up of Restorations of Equine Cheek Teeth Infundibula (2006–2017)” on follow up, what % of horses were deemed successful and how many failed?
Frontiers 2021
Of horses re-examined (n=77), 83% of horses (or 86% of all restorations in these horses) restorations were shown to have minimal or no loss of the restoration material
20 restorations (10.8% of procedures) from 10 horses had restorations with partial or complete loss, or absence of restorative material
In Pearce’s paper “Long-Term Follow-Up of Restorations of Equine Cheek Teeth Infundibula (2006–2017)” what factors were statistically signficant in predicting success of treatment?
Frontiers 2021
grade 3 is more successful than grade 2
Material used – flowable dual cured composite (Starfill) most successful
The Triadan position of the restored tooth, the age of the horse, and the site of infundibulum restored (mesial vs. distal) were NOT related to success (P > 0.25).
The degree of apical debridement (complete vs. incomplete) was also NOT related to success (P = 0.1, 1d.f).
In Lundstrom’s 2020 paper “Equine saliva components during mastication, and in vivo pH changes in the oral biofilm of sound and carious tooth surfaces after sucrose exposure” what electrolytes changed in equine saliva as flow increased?
BMC 2020
Chewing resulted in increased values for all electrolytes except bicarbonate in horses after 50 min
which differs from humans when only bicarb and Na increase with inc saliva flow
