The healing powers of the dental pulp

Shroff, Frank R.

doi:10.1016/0030-4220(59)90297-x

Cited by 13 publications

(4 citation statements)

References 3 publications

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“…Distal to the injured area, the dentin was tubular, because of lesser stimulae. 16 Summing up, the dentin should be considered as a record of the physiologic activity of the odontoblasts. '7 Parallel with this high cellular activity in the incisal edge, there is folding of the basal dentin in which thickness is minimal.…”

Section: Discussionmentioning

confidence: 99%

Changes in Rat Incisors Resulting from Trauma on the Pulp

Ulmansky

Shapiro

1963

J Dent Res

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It has been shown that the rate of eruption of the rat incisor can be increased when the tooth is cut at the gingival level.'-3 The eruptive rate can also be modified by dietary changes and by interrupting the blood supply or the innervation.2 Crowning of the rat's incisor4 slows the rate of its eruption. Several investigators have succeeded in entirely inhibiting the eruptive process by exerting intrusive pressure on the incisors,2 or, in some cases, by breaking them at a level where bone was also damaged.5The present investigation was undertaken to study the histopathologic and eruptive changes that take place in the rat incisor as a result of trauma exerted on its pulp organ. Materials and MethodsThirty-nine rats, random-bred at the Hebrew University, from 100 to 130 days of age, were used in the experiment. The rats weighed from 150 to 250 gm. and were divided into three groups of 7, 25, and 7 animals respectively. Before and during the experiment the animals were fed a commercially prepared diet* and water ad libitum.To induce anesthesia, 1 cc. of sodium pentobarbitalt per each 5 lbs. body weight was injected intraperitoneally. In some cases anesthesia was completed by ether inhalation.In the animals of all three groups the lower right incisor was cut at the gingival level, the homologue tooth being marked at the same height with the aid of a carborundum disc. No further trauma was inflicted on Group A. In Groups B and C, pulp damage was produced at the time of operation by the introduction of a dental reamer No. 1. In Group C a silver point was also inserted into the damaged pulp and left there until the end of the experiment in order to provoke permanent irritation.Every second day the homologue tooth was marked, as was the experimental incisor, when growth was noted. In order to establish the rhythm of eruption, the method described by Marshall6 was applied. The rate of eruption was considered increased when the measurements exceeded at least twice the values given by Schour and Massler,7 and was considered to be slower when they were at least half of the above mentioned values. A pilot experiment indicated that the eruptive process may cease whenever the pulp is damaged, independent of the presence of a silver point in the damaged pulp. The animals were killed when changes in the eruptive process of the damaged tooth were noted. The animals were sacrificed by ether anesthesia and decapitation on the

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Section: Discussionmentioning

confidence: 99%

Changes in Rat Incisors Resulting from Trauma on the Pulp

Ulmansky

Shapiro

1963

J Dent Res

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“…In 1959, Shroff (7) published an article "to show that the pulp normally possesses the power of healing its exposed surface by the production of a calcified collagenous barrier beneath which regeneration of normal dentine may occur and that these events may occur in quite unfavourable circumstances and in the absence of any form of treatment." It is only relatively reeently that it has been widely accepted that the pulp has an inherent capacity to heal (18)(19)(20)(21) and that pulp capping the mechanically exposed pulp can be very successful and predictable (14)(15)(16), although capping of the carious exposure remains controversial.…”

Section: State Oi the Pulpmentioning

confidence: 99%

“…The scepticism towards pulp capping is understandable when it is examined from a historical perspective. In 1956, Quigley (6) commented that "a universal pessimism prevails", while in 1959 Shroff (7) observed that very little progress had been made since calcium hydroxide was introduced into dentistry. During this early period clinical studies of direct pulp capping with calcium hydroxide reported 64% success (8) compared to 83% for root canal treatment (9).…”

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confidence: 99%

Direct pulp capping: a review

Lim

Kirk

1987

Dental Traumatology

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The healthy pulp has good healing potential when it is exposed, although the exact repair mechanism is still undetermined, and it is not material‐specific. Calcium hydroxide appears to promote the healing process and is the most widely accepted capping material. Paste‐type calcium hydroxide formulations are more consistent in promoting healing of pulp exposures than cement forms where bacterial microleakage is eliminated. The prognosis for pulp capping with calcium hydroxide is good if the pulp has no pre‐existing symptoms of pain, and the environment provided for it is suitable. This requires the absence of blood clots and bacterial contamination. Where there are some symptoms of pain in a vital tooth, pretreatments with suitable materials improve the prognosis.

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“…In 1956, Quigley (6) commented that "a universal pessimism prevails", while in 1959 Shroff (7) observed that very little progress had been made since calcium hydroxide was introduced into dentistry. During this early period clinical studies of direct pulp capping with calcium hydroxide reported 64% success (8) compared to 83% for root canal treatment (9).…”

mentioning

confidence: 99%

Untitled

1987

Dental Traumatology

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-The healthy pulp has good healing potential when it is exposed, although the exact repair mechanism is still undetermined, and it is not material-specific. Calcium hydroxide appears to promote the healing process and is the most widely accepted capping material. Paste-type calcium hydroxide formulations are more consistent in promoting healing of pulp exposures than cement forms where bacterial microleakage is eliminated. The prognosis for pulp capping with calcium hydroxide is good if the pulp has no pre-existing symptoms of pain, and the environment provided for it is suitable. This requires the absence of blood clots and bacterial contarnination. Where there are some symptoms of pain in a vital tooth, pretreatments with suitable materials improve the prognosis.

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The healing powers of the dental pulp

Cited by 13 publications

References 3 publications

Changes in Rat Incisors Resulting from Trauma on the Pulp

Changes in Rat Incisors Resulting from Trauma on the Pulp

Direct pulp capping: a review

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