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International Endodontic Journal Mar 1989While the awareness of vertical tooth fractures, whether incomplete or complete, is increasing, sufficient attention has not been paid to the manner in which the dentist... (Review)
Review
While the awareness of vertical tooth fractures, whether incomplete or complete, is increasing, sufficient attention has not been paid to the manner in which the dentist may contribute to the occurrence of these fractures. This paper focuses on the most likely areas in which the practitioner can either misdiagnose the presence of a fractured tooth or where dental procedures contribute to fracture of the tooth structure. For this type of fracture the authors propose the term 'odontiatrogenic tooth fracture'.
Topics: Humans; Iatrogenic Disease; Root Canal Therapy; Tooth Fractures
PubMed: 2689355
DOI: 10.1111/j.1365-2591.1989.tb00508.x -
Journal of Dentistry Jun 1992The incidence, causes and methods of investigating tooth fracture are reviewed. This is a problem of increasing clinical significance, with many predisposing factors.... (Review)
Review
The incidence, causes and methods of investigating tooth fracture are reviewed. This is a problem of increasing clinical significance, with many predisposing factors. Large restorations and extensive carious lesions tend to be associated with most fractures, with fracture incidence being higher in first permanent molars than other tooth types, especially in the lower jaw. Tooth anatomy influences fracture incidence, as does the functional force applied to cusps. Fracture risk in restored teeth may be reduced by cuspal coverage. Traditional tooth fracture investigations using destructive techniques provide valuable information; however, replica and nondestructive techniques are also of value.
Topics: Age Factors; Bite Force; Dental Restoration, Permanent; Dental Stress Analysis; Humans; In Vitro Techniques; Incidence; Root Canal Therapy; Tooth Fractures
PubMed: 1624616
DOI: 10.1016/0300-5712(92)90124-u -
ELife Sep 2019Exceptionally high rates of tooth fracture in large Pleistocene carnivorans imply intensified interspecific competition, given that tooth fracture rises with increased...
Exceptionally high rates of tooth fracture in large Pleistocene carnivorans imply intensified interspecific competition, given that tooth fracture rises with increased bone consumption, a behavior that likely occurs when prey are difficult to acquire. To assess the link between prey availability and dental attrition, we documented dental fracture rates over decades among three well-studied populations of extant gray wolves that differed in prey:predator ratio and levels of carcass utilization. When prey:predator ratios declined, kills were more fully consumed, and rates of tooth fracture more than doubled. This supports tooth fracture frequency as a relative measure of the difficulty of acquiring prey, and reveals a rapid response to diminished food levels in large carnivores despite risks of infection and reduced fitness due to dental injuries. More broadly, large carnivore tooth fracture frequency likely reflects energetic stress, an aspect of predator success that is challenging to quantify in wild populations.
Topics: Animal Diseases; Animals; Feeding Behavior; Fossils; Tooth Fractures; Wolves
PubMed: 31549963
DOI: 10.7554/eLife.48628 -
Fa Yi Xue Za Zhi Feb 2020Objective To discuss the types, number and diagnostic methods of traumatic tooth fracture in order to provide reference for forensic clinical identification. Methods The...
Objective To discuss the types, number and diagnostic methods of traumatic tooth fracture in order to provide reference for forensic clinical identification. Methods The 41 cases accepted by Judicial Appraisal Center of Gansu University of Political Science and Law from January 2015 to December 2017, were analyzed by descriptive statistics according to information such as the basic situation, injury manner, type and number of tooth fracture, diagnostic method and expert opinion. Results The 41 cases included 31 males and 10 females. Tooth fracture occurred mainly on the maxillary anterior teeth. The main injury manner of traumatic tooth fracture was collision injury. CT scan improved the accuracy of diagnosis. Conclusion There are gender differences in tooth fracture cases. The part of fracture is related to tooth anatomical characteristics. CT scan can be a priority in tooth fracture diagnosis. Forensic analysis of traumatic tooth fracture should comprehensively consider the types and number of tooth fracture, and define the relationship between tooth fracture and the injury.
Topics: Expert Testimony; Female; Forensic Medicine; Humans; Male; Sex Factors; Tomography, X-Ray Computed; Tooth Fractures
PubMed: 32250081
DOI: 10.12116/j.issn.1004-5619.2020.01.013 -
International Endodontic Journal May 2022Vertical root fracture (VRF) is a common reason for the extraction of root filled teeth. The accurate diagnosis of VRF may be challenging due to the absence of clinical... (Review)
Review
Vertical root fracture (VRF) is a common reason for the extraction of root filled teeth. The accurate diagnosis of VRF may be challenging due to the absence of clinical signs, whilst conventional radiographic assessment is often inconclusive. However, an understanding of the aetiology of VRFs, and more importantly, the key predisposing factors, is crucial in identifying teeth that may be susceptible. Thorough clinical examination with magnification and co-axial lighting is essential in identifying VRFs, and although CBCT is unable to reliably detect VRFs per se, the pattern of bone loss typically associated with VRF can be fully appreciated, and therefore, increases the probability of correct diagnosis and management. The prevalence of VRFs in root filled teeth is significantly greater than in teeth with vital pulps, demonstrating that the combination of loss of structural integrity, presence of pre-existing fractures and biochemical effects of loss of vitality is highly relevant. Careful assessment of the occlusal scheme, presence of deflective contacts and identification of parafunctional habits are imperative in both preventing and managing VRFs. Furthermore, anatomical factors such as root canal morphology may predispose certain teeth to VRF. The influence of access cavity design and root canal instrumentation protocols should be considered although the impact of these on the fracture resistance of root filled teeth is not clearly validated. The post-endodontic restoration of root filled teeth should be expedient and considerate to the residual tooth structure. Posts should be placed 'passively' and excessive 'post-space' preparation should be avoided. This narrative review aims to present the aetiology, potential predisposing factors, histopathology, diagnosis and management of VRF and present perspectives for future research. Currently, there are limited options other than extraction for the management of VRF, although root resection may be considered in multi-rooted teeth. Innovative techniques to 'repair' VRFs using both orthograde and surgical approaches require further research and validation. The prevention of VRFs is critical; identifying susceptible teeth, utilizing conservative endodontic procedures, together with expedient and appropriate post-endodontic restorative procedures is paramount to reducing the incidence of terminal VRFs.
Topics: Cone-Beam Computed Tomography; Humans; Root Canal Obturation; Root Canal Therapy; Tooth Fractures; Tooth Root; Tooth, Nonvital
PubMed: 35338655
DOI: 10.1111/iej.13737 -
British Dental Journal Apr 2001Many terms have been used to describe incomplete tooth fractures. This paper reviews them, discusses the clinical features of incomplete tooth fractures and proposes a... (Review)
Review
Many terms have been used to describe incomplete tooth fractures. This paper reviews them, discusses the clinical features of incomplete tooth fractures and proposes a clinically representative definition.
Topics: Cracked Tooth Syndrome; Humans; Radiography; Terminology as Topic
PubMed: 11352390
DOI: 10.1038/sj.bdj.4800992 -
Polski Merkuriusz Lekarski : Organ... Jun 2022Traumatic dental injuries (TDIs) with a prevalence of 25% among school children and 33% among adults are a public health problem and can have a negative influence on the... (Review)
Review
Traumatic dental injuries (TDIs) with a prevalence of 25% among school children and 33% among adults are a public health problem and can have a negative influence on the quality of life. The treatment prognosis of some teeth injuries is heavily dependent on the actions taken at the place of injury. The objective was to summarize evidence-based knowledge on the topic of TDIs and present a practical management guide for first aid in an accessible way. The authors searched the PubMed and Google Scholar databases. The review included only papers published in 2013 or later. Tooth injuries are proven to cause physical, social as well as economic consequences. The most frequent type of injury in primary dentition is avulsion, whereas crown fractures are most common in permanent dentition. TDIs occur most often at home and in school. Certain risk factors for TDIs were identified which include, among others, male gender, younger age, obesity. The general community knowledge of correct first aid in case of dental trauma is limited. Guidelines published by the International Association of Dental Traumatology include practical recommendations for first aid after avulsion. Permanent teeth should be replanted immediately at the accident site, whereas primary teeth should not be replanted when avulsed. Broken teeth fragments ought always to be collected if possible. After dental trauma it is vital that the patients seek professional help. Measures preventing TDIs (e.g., mouthguards) should be encouraged. It is of great importance that parents, teachers, guardians or bystanders witnessing a TDI are equipped to assist after a dental trauma or give advice on first aid when needed. Raising public awareness on the topic of dental injuries is a strongly advised general objective.
Topics: Adult; Child; Dentition, Permanent; Humans; Male; Quality of Life; Tooth Avulsion; Tooth Fractures; Tooth Injuries
PubMed: 35801610
DOI: No ID Found -
European Endodontic Journal Jan 2023This study aimed to evaluate the survival from fractures and risk factors of VPT-treated permanent molars restored with direct resin composites in young patients.
Tooth Fracture and Associated Risk Factors in Permanent Molars Treated with Vital Pulp Therapy and Restored with Direct Resin Composites: A Retrospective Survival Analysis in Young Patients.
OBJECTIVE
This study aimed to evaluate the survival from fractures and risk factors of VPT-treated permanent molars restored with direct resin composites in young patients.
METHODS
The dental records of patients aged 6 to 18 years with VPT-treated permanent molars restored with resin composites were retrospectively evaluated for the presence of fractures on these teeth. Kaplan-Meier methods were used to estimate the survival probabilities. The potential risk factors were assessed using the multivariable Cox proportional hazard model.
RESULTS
A total of 234 treated molars from 189 patients were included. An overall average follow-up time was 33.34+-20.54 months (ranging from 6 to 83 months). At the end of the study, 21.8% of molars had fractures with the majority of them (92.2%) were restorable. Radiographically, only 3.9% of the fractured molars had periapical lesions and considered VPT failures. The percentages of the fracture types are as follows: 54.9% natural tooth structure fracture, 27.5% restoration fracture, and 17.6% combination fracture. The most common fracture location among the 37 molars with natural tooth fracture (either alone or in combination with restoration fracture) was at the marginal ridge (59.5%), followed by the marginal ridge extending to cusp (21.6%), and the cusp itself (18.9%). The cumulative survival probabilities of these teeth decreased over time, reaching 66.02% (95% CI: 55.89-74.36) after 5 years. VPT-treated molars in the mandible had a 2.1 times higher risk of fracture than those in the maxilla. Furthermore, the molars treated with partial and coronal pulpotomy had 2.4 times and 4.6 times higher risks of fracture when compared to those with indirect pulp capping, respectively.
CONCLUSION
In VPT-treated permanent molars in young patients, more fractures were seen in mandibular teeth and in teeth with pulp roof removal (partial and coronal pulpotomy). Clinicians should plan for proper restoration on these teeth. (EEJ-2022-08-097).
Topics: Humans; Retrospective Studies; Molar; Composite Resins; Tooth Fractures; Survival Analysis; Risk Factors
PubMed: 36748448
DOI: 10.14744/eej.2022.18894 -
Journal of the Massachusetts Dental... 1988
Review
Topics: Bicuspid; Humans; Molar; Tooth Fractures; Tooth Root
PubMed: 3063764
DOI: No ID Found -
Oral Surgery, Oral Medicine, and Oral... Feb 1977
Topics: Adult; Fractures, Spontaneous; Humans; Male; Radiography; Tooth Fractures
PubMed: 264654
DOI: 10.1016/0030-4220(77)90169-4