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L' Orthodontie Francaise Dec 2018
Topics: Age Factors; Animals; Comorbidity; Humans; Orthodontics; Radiography, Panoramic; Rats; Risk Factors; Tooth Resorption
PubMed: 30565552
DOI: 10.1051/orthodfr/2018031 -
Dental and Medical Problems 2022The management of complex dental trauma can be modulated according to the emergencies that may arise over time. Clinical management of transverse root fractures may... (Review)
Review
The management of complex dental trauma can be modulated according to the emergencies that may arise over time. Clinical management of transverse root fractures may require different therapies based on situations, such as delay and error in the treatment of an avulsion trauma associated with apical third root fracture, patient's poor compliance, or external and internal root resorption. The primary aim of this article was to review studies regarding root fractures in the permanent dentition and root fracture management. The secondary aim was to present the inflammatory reaction and the complications (i.e., infections) that may occur if the International Association for Dental Traumatology (IADT) guidelines are not followed. In addition, a scenario is devised in which endodontic surgery, despite the baseline patient's conditions and negative prognosis, can help to inhibit the inflammatory root resorption and allow the preservation of soft and hard tissues within a long follow-up from the injury, for the purpose of demonstrating the next possible implant-prosthetic rehabilitation.
Topics: Humans; Tooth Fractures; Root Resorption; Tooth Avulsion; Fractures, Bone; Dentition, Permanent
PubMed: 36537854
DOI: 10.17219/dmp/145895 -
Journal of Veterinary Dentistry Dec 2022Dental pathology is among the most ubiquitous diseases in cats of all ages. Dental pain is yet to be fully understood in cats and therefore its presence is often missed.... (Review)
Review
Dental pathology is among the most ubiquitous diseases in cats of all ages. Dental pain is yet to be fully understood in cats and therefore its presence is often missed. To better understand feline dental disease as a pain trigger during routine examination and whether disease severity correlates to the degree of pain, a 6-month prospective study in a cats' only veterinary hospital in Portugal was conducted. Sixty-four cats that randomly presented for different clinical procedures were evaluated. Dental and periodontal abnormalities (primary dental parameters, PDP), as well as clinical signs related to dental pain (secondary dental parameters, SDP), were assessed. All cats underwent an oral cavity examination, upon which, the Feline Acute Pain Scale from Colorado State University Veterinary Teaching Hospital (CPS), was used in order to assess pain. Six PDP (periodontal disease, gingival index, calculus index, tooth resorption, tooth fracture and missing teeth) and five SDP (mouth discomfort, halitosis, hypersalivation, difficulty in holding food and several attempts at prehension of food), were compared with CPS pain scores. All SDP were significantly associated to higher CPS pain scores (p < 0.05). The number of missing teeth was significantly associated to higher CPS pain scores (p < 0.0001). A trend was observed between higher CPS pain scores and tooth resorption (p = 0.08). This study concluded that cats with dental disease feel pain during clinical examination and the pain increases as the severity of the disease progresses.
Topics: Cats; Animals; Prospective Studies; Hospitals, Animal; Hospitals, Teaching; Periodontal Diseases; Tooth Resorption; Pain; Cat Diseases
PubMed: 35603830
DOI: 10.1177/08987564221103142 -
Hua Xi Kou Qiang Yi Xue Za Zhi = Huaxi... Dec 2022External apical root resorption is among the most common risks of orthodontic treatment, and it cannot be completely avoided and predicted. Risk factors causing...
External apical root resorption is among the most common risks of orthodontic treatment, and it cannot be completely avoided and predicted. Risk factors causing orthodontic root resorption can generally be divided into patient- and treatment-related factors. Root resorption that occurs during orthodontic treatment is usually detected by radiographical examination. Mild or moderate root absorption usually does no obvious harm, but close attention is required. When severe root resorption occurs, it is generally recommended to suspend the treatment for 3 months for the cementum to be restored. To unify the risk factors of orthodontic root resorption and its clinical suggestions, we summarized the theoretical knowledge and clinical experience of more than 20 authoritative experts in orthodontics and related fields in China. After discussion and summarization, this consensus was made to provide reference for orthodontic clinical practice.
Topics: Humans; Tooth Movement Techniques; Root Resorption; Consensus; Dental Cementum; Risk Factors
PubMed: 36416314
DOI: 10.7518/hxkq.2022.06.002 -
Schweizer Archiv Fur Tierheilkunde Sep 2023Equine odontoclastic tooth resorption and hypercementosis (EOTRH) is an increasingly diagnosed degenerative dental disease in aged horses. The primary aim of this...
The prevalence of equine odontoclastic tooth resorption and hypercementosis and the role of interincisal angulation in disease severity in a representative cohort of horses in Switzerland.
Equine odontoclastic tooth resorption and hypercementosis (EOTRH) is an increasingly diagnosed degenerative dental disease in aged horses. The primary aim of this retrospective study was to determine the prevalence of EOTRH in horses admitted to the Equine Hospital, University of Zurich, for dental procedures from 2004 to 2017. A secondary goal was to measure and compare interincisal angles on two-dimensional radiographs of horses with EOTRH to determine whether the interincisal angle is associated with age and severity of the disease. Radiographs were assessed for the presence of lysis and/or hypercementosis, and the number and position of the teeth affected were determined. Each tooth was also evaluated using the modified classification system introduced by Rehrl et al. (2018), in which stage 0 indicates no radiographic abnormalities and stage 3 denotes severe abnormalities. The overall stage was defined by the tooth with the most severe lesions. The interincisal angle was determined in horses that had suitable radiographs. The medical records of 838 horses admitted for dental procedures were evaluated, and 85 (10,1 %) had clinical evidence of EOTRH. The mean interincisal angle was 136,06 ° in horses with mild to moderate EOTRH and 135,10 ° (SD = 11,90 °) in severely affected patients. In conclusion, the angle measurements on lateral radiographs were highly reproducible. However, the interincisal angle was not associated with age or the severity of EOTRH. The interincisal angle and the disease pattern were not correlated.
Topics: Horses; Animals; Prevalence; Switzerland; Hypercementosis; Retrospective Studies; Tooth Resorption; Patient Acuity; Horse Diseases
PubMed: 37646096
DOI: 10.17236/sat00401 -
International Journal of Molecular... Mar 2021Periodontitis is the inflammatory destruction of the tooth-surrounding and -supporting tissue, resulting at worst in tooth loss. Another locally aggressive disease of...
Periodontitis is the inflammatory destruction of the tooth-surrounding and -supporting tissue, resulting at worst in tooth loss. Another locally aggressive disease of the oral cavity is tooth resorption (TR). This is associated with the destruction of the dental mineralized tissue. However, the underlying pathomechanisms remain unknown. The complement system, as well as mast cells (MCs), are known to be involved in osteoclastogenesis and bone loss. The complement factors C3 and C5 were previously identified as key players in periodontal disease. Therefore, we hypothesize that complement factors and MCs might play a role in alveolar bone and tooth resorption. To investigate this, we used the cat as a model because of the naturally occurring high prevalence of both these disorders in this species. Teeth, gingiva samples and serum were collected from domestic cats, which had an appointment for dental treatment under anesthesia, as well as from healthy cats. Histological analyses, immunohistochemical staining and the CH-50 and AH-50 assays revealed increased numbers of osteoclasts and MCs, as well as complement activity in cats with TR. Calcifications score in the gingiva was highest in animals that suffer from TR. This indicates that MCs and the complement system are involved in the destruction of the mineralized tissue in this condition.
Topics: Alveolar Bone Loss; Animals; Cats; Complement C3; Complement C5; Mast Cells; Osteoclasts; Periodontitis; Tooth Resorption
PubMed: 33803323
DOI: 10.3390/ijms22052759 -
Dental Press Journal of Orthodontics 2017Root resorptions caused by orthodontic movement are not supported by consistent scientific evidence that correlate them with heredity, individual predisposition and...
Root resorptions caused by orthodontic movement are not supported by consistent scientific evidence that correlate them with heredity, individual predisposition and genetic or familial susceptibility. Current studies are undermined by methodological and interpretative errors, especially regarding the diagnosis and measurements of root resorption from orthopantomographs and cephalograms. Samples are heterogeneous insofar as they comprise different clinical operators, varied types of planning, and in insufficient number, in view of the prevalence of tooth resorptions in the population. Nearly all biological events are coded and managed through genes, but this does not mean tooth resorptions are inherited, which can be demonstrated in heredograms and other methods of family studies. In orthodontic root resorption, one cannot possibly determine percentages of how much would be due to heredity or genetics, environmental factors and unknown factors. There is no need to lay the blame of tooth resorptions on events taking place outside the orthodontic realm since in the vast majority of cases, resorptions are not iatrogenic. In orthodontic practice, when all teeth are analyzed and planned using periapical radiography or computerized tomography, and when considering all predictive factors, tooth resorptions are not iatrogenic in nature and should be considered as one of the clinical events inherent in the treatment applied.
Topics: Humans; Root Resorption
PubMed: 28902245
DOI: 10.1590/2177-6709.22.4.022-027.oin -
Journal of Orthodontics Jun 2022To quantify tooth volume differences from extracted teeth when using three different three-dimensional (3D) computed tomography (CT)-based imaging modalities.
OBJECTIVE
To quantify tooth volume differences from extracted teeth when using three different three-dimensional (3D) computed tomography (CT)-based imaging modalities.
DESIGN
Ex vivo study.
SETTING
Laboratory and clinics of the University of Alberta.
METHODS
Cone-beam CT (CBCT) of 12 extracted teeth were scanned using 0.25- and 0.30-mm voxel size from CBCT and a 0.06-mm voxel size from micro-CT (reference standard). 3D reconstructions for each tooth from each imaging modality were made through the software ITK-SNAP®. The mean volume differences between each pair of scanning modalities were calculated and then compared and analysed through a repeated measures ANOVA.
RESULTS
The average overestimations of the teeth volume were 15.2% for the high-resolution CBCT and 28.1% for the low-resolution CBCT compared to micro-CT measurements. The differences in absolute volume were 81.6 mm and 152.8 mm, respectively. All differences were statistically significant ( < 0.05).
CONCLUSIONS
Orthodontists and researchers who assess root resorption through CBCT imaging should be aware that the depicted volumes may likely be overestimating tooth volume and camouflaging real root volumetric treatment changes.
Topics: Cone-Beam Computed Tomography; Humans; Image Processing, Computer-Assisted; Root Resorption; Tooth; Tooth Root; X-Ray Microtomography
PubMed: 34903069
DOI: 10.1177/14653125211066106 -
JPMA. the Journal of the Pakistan... Jan 2021To assess the frequency of maxillary ectopic canine both buccally and palatally displaced with incisor root resorption and dental agenesis.
OBJECTIVE
To assess the frequency of maxillary ectopic canine both buccally and palatally displaced with incisor root resorption and dental agenesis.
METHODS
The cross-sectional study was conducted from April 8 to June 29, 2019, at the Department of Orthodontics, Dr. Ishrat Ul Ebad Khan Institute of Oral Health Sciences, and Dow Dental College, Dow University Of Health Sciences, Karachi, and comprised orthodontic patients diagnosed with maxillary ectopic canine eruption. Root resorption and agenesis were diagnosed on panoramic films. Root resorption was further confirmed by periapical radiographs. Data was analysed using SPSS 21.
RESULTS
Of the 98 subjects, 86(87.8%) had buccally displaced canines of which 38(44.2%) were associated with root resorption, while 12(12.2%) patients had palatally displaced canines of which 10(83.3%) had root resorption (p=0.011). Overall, 30(30.6%) lateral incisors were resorbed, 7(7.1%) both central and lateral incisors, 5(5.1%) premolars, and 6(6.1%) both lateral incisors and premolars were resorbed. Agenesis was detected in 10 (10.2%) subjects (p=0.62).
CONCLUSIONS
There was found to be no association of maxillary ectopic canines with incisor root resorption and dental agenesis.
Topics: Cross-Sectional Studies; Cuspid; Humans; Incisor; Maxilla; Root Resorption; Tooth Eruption, Ectopic; Tooth, Impacted
PubMed: 35157664
DOI: 10.47391/JPMA.782 -
Current Osteoporosis Reports Dec 2016When orthodontic patients desire shorter treatment times with aesthetic results and long-term stability, it is important for the orthodontist to understand the potential... (Review)
Review
When orthodontic patients desire shorter treatment times with aesthetic results and long-term stability, it is important for the orthodontist to understand the potential limitations and problems that may arise during standard and/or technology-assisted accelerated treatment. Bone density plays an important role in facilitating orthodontic tooth movement (OTM), such that reductions in bone density can significantly increase movement velocity. Lifestyle, genetic background, environmental factors, and disease status all can influence a patients' overall health and bone density. In some individuals, these factors may create specific conditions that influence systemic-wide bone metabolism. Both genetic variation and the onset of a bone-related disease can influence systemic bone density and local bone density, such as observed in the mandible and maxilla. These types of localized density changes can affect the rate of OTM and may also influence the risk of unwanted outcomes, i.e., the occurrence of dental external apical root resorption (EARR).
Topics: Bone Density; Bone Diseases, Metabolic; Bone Remodeling; Humans; Interleukin-1beta; Mandible; Maxilla; Osteoprotegerin; Receptors, Purinergic P2X7; Root Resorption; Tooth Movement Techniques
PubMed: 27766484
DOI: 10.1007/s11914-016-0340-1