Calcific Metamorphosis : A Review

Siddiqui, Shoaib Haider; Mohamed, Ahmed

doi:10.12816/0048738

Cited by 16 publications

(19 citation statements)

References 18 publications

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“…Consequently, pulp cells undergo metaplasia and the production of dentin in a disordered and random manner, far from the pulp walls. Metaplasia of the dental pulp is also commonly referred to in the literature as calcific metamorphosis of the pulp, which has been more frequently associated with less severe injuries, such as concussion or subluxation …”

Section: Discussionmentioning

confidence: 99%

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Calcific metamorphosis of pulp after extrusive luxation

Queiroz

Hidalgo

Consolaro

et al. 2019

Dental Traumatology

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Background/Aim The literature on the pathogenesis of extrusive dental luxation has been focused on periodontal tissue responses, with little attention given to the pulp. The aim of this study was to evaluate the response of dental pulp of teeth following extrusive luxation in a rat model. Material and Methods The maxillary right central incisors of 30 rats were extrusively luxated and repositioned after 5 minutes. The animals were euthanized after 7, 15, and 30 days to provide three groups: I, II, and III, respectively (n = 10). Histological sections were stained with H and E for histomorphometric analysis of the odontoblast layer, reparative dentin deposition, Hertwig's epithelial root sheath, pulp necrosis, and periapical inflammatory infiltrate. Results In most cases, new vascular formation occured in association with reparative dentin deposition on the root walls and within the pulp. In some cases, dentin deposition occupied the entire pulp space over time, with no other types of non‐odontogenic hard tissues being observed. Pulp necrosis with the presence of periapical inflammatory infiltrate was also observed in a few cases. No statistical differences were observed among the studied groups. Conclusions Following extrusive luxation, calcific metamorphosis of the pulp is very likely to occur.

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Section: Discussionmentioning

confidence: 99%

“…Metaplasia of the dental pulp is also commonly referred to in the literature as calcific metamorphosis of the pulp, 23,24 which has been more frequently associated with less severe injuries, such as concussion or subluxation. 23 Previous studies have addressed the nature of the newly formed tissue in the pulp after trauma.…”

Section: Discussionmentioning

confidence: 99%

Calcific metamorphosis of pulp after extrusive luxation

Queiroz

Hidalgo

Consolaro

et al. 2019

Dental Traumatology

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“…17,37 Only in those cases where signs or symptoms of apical periodontitis appear is there clear evidence for undertaking endodontic treatment. 3,5,18,27,28,32,41,45,60 This recommendation is supported by clinical results showing success rates and favorable long-term prognosis of endodontically treated obliterated teeth, even though this may represent a real challenge. 29,64 The currently available endodontic arsenal offers secure and practical tools for such an intervention.…”

Section: Pulp Necrosis After Pcomentioning

confidence: 98%

“…Tertiary dentin is region-specific and is deposited in response to injury; it can be divided into reactionary and reparative dentin. 1 However, this process can be accelerated in teeth affected by traumatic injuries (TI) 2,3,4,5,6 or involved in autotransplantation, 7,8,9,10 orthodontic therapy, 11,12 jaw fractures 13 and orthognathic surgery, 14,15 leading to rapid obliteration of the pulpal cavity.…”

Section: Introductionmentioning

confidence: 99%

“…16 This denomination was adopted by several authors, including Patterson and Mitchell,17 who also mentioned the expression pulp canal obliteration in their paper; Holcomb and Gregory Junior; 18 Smith,19 Schlinder and Gullickson, 20 West, 21 Amir et al, 22 Gopkrisna et al, 23 Malhotra and Mala, 24 and Siddiqui and Mohamed. 5 The term obliteration was used by Andreasen, 25 Stålhane and Hedegård, 26 and by Jacobsen and Kerekes, 27 who referred to the term as a pulp cavity calcifying process. It has been called reduced pulpal lumen, 28,29 dystrophic calcification, 30 pulp calcification, 31 calcific pulp obliteration, 32 and pulp canal sclerosis.…”

Section: Introductionmentioning

confidence: 99%

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Pulp canal obliteration after traumatic injuries in permanent teeth – scientific fact or fiction?

Bastos

Côrtes

2018

Braz. oral res.

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Pulp canal obliteration (PCO) is a frequent finding associated with pulpal revascularization after luxation injuries of young permanent teeth. The underlying mechanisms of PCO are still unclear, and no experimental scientific evidence is available, except the results of a single histopathological study. The lack of sound knowledge concerning this process gives rise to controversies, including the most suitable denomination. More than a mere semantic question, the denomination is an important issue, because it reflects the nature of this process, and directly impacts the treatment plan decision. The hypothesis that accelerated dentin deposition is related to the loss of neural control over odontoblastic secretory activity is well accepted, but demands further supportive studies. PCO is seen radiographically as a rapid narrowing of pulp canal space, whereas common clinical features are yellow crown discoloration and a lower or non-response to sensibility tests. Late development of pulp necrosis and periapical disease are rare complications after PCO, rendering prophylactic endodontic intervention useless. Indeed, yellowish or gray crown discoloration may pose a challenge to clinicians, and may demand endodontic intervention to help restore aesthetics. This literature review was conducted to discuss currently available information concerning PCO after traumatic dental injuries (TDI), and was gathered according to three topics: I) physiopathology of PCO after TDI; II) frequency and predictors of pulpal healing induced by PCO; and III) clinical findings related to PCO. Review articles, original studies and case reports were included aiming to support clinical decisions during the follow-up of teeth with PCO, and highlight future research strategies.

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