Effect of high‐ and low‐speed burs used for partial pulpotomy in monkey teeth

Heide, S

doi:10.1111/j.1365-2591.1984.tb00372.x

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…1982, Heide & Mi6rl983). Newly exposed and then similarly cut pulps of premolars and mdars in a previous study in monkeys often indicated slight, but very superficial roughoiing of the cut dssue (Heide 1984). The interanimal variation seen in the present study in the distrihution of bridge categories also suggested an infliience of individual factors.…”

Section: Heiiesupporting

confidence: 65%

The effect of pulp capping and pulpotomy on hard tissue bridges of contaminated pulps

Heide

1991

Int Endodontic J

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The pulp and dentine of permanent incisors in 13 young monkeys were exposed by grinding. The pulpal perforations were treated by partial pulpotomy with a tungsten carbide fissure bur after exposure for 4, 48, or 168 hours in nine animals, and by direct pulp capping after exposure for 4 or 48 hours in the remaining four animals. After haemostasis, the pulpal wounds were covered with calcium hydroxide (Dycal), followed by conventional amalgam (Revalloy). Initial and subsequent formation of hard tissue bridges over the wounds was studied by conventional histology after 1-6 months. Screening showed three categories of initial bridging development, differing in nature and rate of formation. A significant difference in the distribution of the two main categories was found between the two methods of treatment (P less than 0.02). A similar difference was observed when partial pulpotomy was performed after 168 hours compared with that performed after 4 hours (P = 0.055). No relationship was found between the initial bridging category and the eventual development of complete dentine bridges.

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Section: Heiiesupporting

confidence: 65%

The effect of pulp capping and pulpotomy on hard tissue bridges of contaminated pulps

Heide

1991

Int Endodontic J

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“…An animal study investigated the effect of diamond and carbide bur operated at high speed and stainless steel bur operated at low speed on the histological outcome of partial pulpotomy. They concluded that irrespective of the bur type, high‐speed techniques demonstrated minimal damage to the remaining pulp tissue (Heide, 1984). Although there is no literature on the ideal method of pulp tissue removal for full pulpotomy, in this study, sterile diamond bur operated at 3 00 000 rpm under air–water coolant spray was preferred for performing the coronal pulpotomy.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Influence of occlusal and proximal caries on the outcome of full pulpotomy in permanent mandibular molar teeth with partial irreversible pulpitis: A prospective study

et al. 2021

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Aim To assess the influence of occlusal and proximal deep carious lesions on the outcome of full pulpotomy performed in mandibular teeth with pulpal diagnosis of symptomatic partial irreversible pulpitis. Methodology Eighty deep carious mandibular molar teeth with clinical and radiographic diagnosis of symptomatic partial irreversible pulpitis without periapical rarefaction from patients of either gender between the age of 16–35 years were included. Depending upon the location of deep carious lesion, the teeth were distributed equally into occlusal (n = 40) and proximal caries groups (n = 40). Full pulpotomy was performed under local anaesthesia and aseptic conditions. The pulp tissue was removed until the root canal orifices, and 2.5% sodium hypochlorite (NaOCl) was applied to arrest pulpal bleeding. Mineral trioxide aggregate (MTA) was compacted over the radicular pulp. Teeth were restored with resin‐modified glass ionomer cement (RMGIC) and bulk‐fill composite resin. Pre‐ and post‐operative pain was assessed at 24, 48 and 72 h using a 11‐point Numerical Rating Scale (NRS). Patients were followed at 6 and 12 months for clinical and radiographic evaluation. Asymptomatic teeth without any radiographic evidence of periapical rarefaction were considered successful. The data were analysed using the Shapiro–Wilk W test, two‐sample Wilcoxon rank‐sum test, Pearson chi‐square test, Fisher's exact test and Kappa coefficient. The significance level was predetermined at p < .05. Result An intergroup comparison revealed that the pre‐ and post‐operative pain scores at 24, 48 and 72 h were not significantly different (p > .05). At the end of follow‐up period (12 months), success of full pulpotomy in occlusal and proximal caries group was 95% and 92.5%, respectively (p = .644). For both groups, the combined success rate of full pulpotomy was 93.75%. Conclusion The site of carious lesions (i.e., occlusal or proximal) did not affect the clinical and radiographic outcome of full pulpotomy performed in mature permanent mandibular teeth with symptomatic partial irreversible pulpitis.

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“…The structure of the initial irregular secondary dentine was atubular. This could be due to odontoblast damage from the operative procedure (Heide 1984), or from the capping agent (Tronstad 1974, Fitzgerald 1979. Dentine chips incorporated in reparative dentine deep within the coronal portion of the tooth indicated considerable operative trauma to the pulp in some teeth, as did incremental lines interrupted by voids in coronal or radicular dentine, passing far beyond the area of actual damage.…”

Section: Discussionmentioning

confidence: 99%

Delayed partial pulpotomy in permanent incisors of monkeys

Heide

Kerekes

1986

Int Endodontic J

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Summary. Pulpal exposures, approximately 1 mm in size, were created in 35 developing permanent incisors of five monkeys. These were left untreated for one of three time intervals: 4, 48 or 168 hours. After these periods, a standardized partial pulpotomy procedure was performed. When haemostasis had occurred, a layer of Dycal was applied over the pulp stump and the cavity filled with amalgam. Radiographs were taken 1 month and 6 months after treatment. The jaws were removed 6 months after partial pulpotomy and prepared for histological examination. The clinical examination and 1‐month radiographs revealed no abnormality; on the 6‐month radiographs a periapical radiolucency was observed on one tooth. All teeth showed continued root development over the experimental period. Histologically, 27 pulps had healed, three pulp wounds were incompletely healed, and five, all in one animal, were severely inflamed. Four of these five failures were associated with extensive bacterial contamination. In all teeth, cervical dentine was deposited but the amounts varied considerably. The success of pulpotomy was not jeopardized by delaying treatment for up to 168 hours after pulpal exposure.

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Effect of high‐ and low‐speed burs used for partial pulpotomy in monkey teeth

Cited by 5 publications

References 14 publications

The effect of pulp capping and pulpotomy on hard tissue bridges of contaminated pulps

The effect of pulp capping and pulpotomy on hard tissue bridges of contaminated pulps

Influence of occlusal and proximal caries on the outcome of full pulpotomy in permanent mandibular molar teeth with partial irreversible pulpitis: A prospective study

Delayed partial pulpotomy in permanent incisors of monkeys

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