Maintenance of oral function in 3 cats with dental resorption (original) (raw)
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Feline dentistry — how to deal with root remnants
Companion Animal, 2015
A previous article ( Kirby, 2014 ) discussed the extraction technique and challenges in feline dentistry, particularly when tooth resorption is present. This article focuses on the problem of root remnants in feline dentistry, which can occur in cats with or without tooth resorption. The diagnosis may be obvious in some cases and more challenging in others. The diagnostic approach and surgical management will be described.
Treatment of a mandibular molar with internal and external resorption
The aim was to report the diagnosis and successful clinical management of a patient with pathological anatomic variation in a mandibular first molar, caused by internal and external resorption and to evaluate radiographically the long term clinical outcome of the root canal treatment. A case is presented in which a previous caries removal procedure with pulp exposure on a mandibular molar developed into internal resorption of the pulp chamber floor and the distal canal. A preoperative periapical radiograph showed apical external resorption of the molar roots and condensing osteitis associated with the mesial root. Root canal treatment was completed in two visits, with calcium hydroxide used as an interappointment dressing for 1 month. A 36 month follow-up showed apical root repair and no evidence of periapical bony changes.
Update on the Etiology of Tooth Resorption in Domestic Cats
Veterinary Clinics of North America: Small Animal Practice, 2005
Feline odontoclastic resorptive lesions (FORL) were first recognized and histologically differentiated from caries in the 1920s . Some anecdotal reports describing caries-like lesions at the cervical region of feline teeth followed in the 1950s and 1960s, until two microscopic studies in the 1970s again revealed that FORL were not caries but a type of tooth resorption . A recent study showed that cats with FORL have a significantly lower urine specific gravity and significantly higher serum concentration of 25hydroxyvitamin D (25OHD) compared with cats without FORL [5], indicating that multiple tooth resorption in domestic cats could be the manifestation of some systemic insult rather than a local cause. In this article, the histologic and radiographic appearance of FORL and certain other peculiarities of feline teeth are reviewed. An attempt is then made to compare these findings with changes of the periodontium induced by administration of excess vitamin D or vitamin D metabolites in experimental animals.
Multidisciplinary Approach for Management of External Root Resorption in Maxillary Canine
University journal of dental sciences, 2019
The reaction of dentoalveolar apparatus in the presence of an infection cause an inflammation which is followed by tooth resorption. Depending upon the type of resorption and etiological factors, different treatment modalities are present. An incorrect diagnosis may result in inappropriate treatment. So, in this case, use of cone beam computed tomography for a definite and correct diagnosis has been done. The use of low-level laser (soft-tissue laser) has been seen effective in cases of root resorption because of their bactericidal effect on osteoclast cells. These cells had been seen at the site of resorption. The perforation site can be covered with amalgam, composite resins, glass ionomer cement, and more new advanced material, mineral trioxide aggregate (MTA). The present article is the case report about the surgical management of external root resorption by using soft-tissue laser and MTA filling material in an endodontically treated maxillary canine.
2013
Maxillary canines are the second most frequently impacted teeth in the dental arch. Root resorptions are often found in teeth adjacent to an impacted maxillary canine (IMC) and may potentially lead to tooth loss. The treatment is often complicated when diagnosis is established at a later stage. Computed tomography (CT) has been proven to be superior in determining the presence and degree of root resorption in teeth adjacent to IMC to support treatment plans and clinical decisions. This report describes the case of a patient with bilaterally impacted maxillary canines associated with severe root resorption of the right fi rst premolar and the left lateral incisor and focuses on the importance of CT imaging for diagnosis and treatment plan.
Risk assessment of feline tooth resorption: a Portuguese clinical case control study
Journal of veterinary dentistry, 2013
Tooth resorption (TR) is one of the most common dental diseases in cats. Determination of risk factors has not yet been fully assessed and, to the best knowledge of the authors, this disease has never been studied in Portuguese cats. The objective of this case-control study was to determine type and distribution of TR lesions, evaluate risk factors, and establish relationships between variables in this disease. The study included data from 71 cats admitted for general anesthesia for various reasons. The cats were randomly selected. The inclusion criteria were availability of clinical history and owner permission. Cats with known oral disease were not excluded from the study. All cats received ultrasonic scaling and polishing of the teeth, a thorough oral examination, and full-mouth radiographs. A strong statistical relation was found between age and TR. The age group of 10 to 15-years showed an increased risk of 6.56 times for TR occurrence compared with the group 0 to 4-years of ag...
Journal of Endodontics, 1992
This study examined, histologically, the healing of intentionally damaged root surfaces of replanted teeth with either uninfected or infected root canals treated with short-and long-term calcium hydroxide. Thirty beagle dog incisors were randomly divided into four groups. In group 1, uninfected obturated incisors were extracted, the roots were longitudinally grooved and the teeth were replanted within 2 min. In group 2 the root canals were artificially infected followed by extraction, longitudinal grooving, and replantation as described in group 1. Fourteen days after replantation, the root canals were fully instrumented and medicated with intracanal calcium hydroxide. One week later the root canals were permanently obturated with gutta-percha and sealer. The teeth in group 3 were treated as described in group 2 but after 1 wk the calcium hydroxide dressing was repacked for the duration of the study. In group 4 (positive control) the teeth were treated as described in groups 2 and 3 but no endodontic treatment was performed. After 8 wk, sacrifice and histological preparation were carried out. In group 1 complete cemental repair was seen in all teeth. In groups 2 and 3, complete and incomplete cemental repair was seen in seven and two teeth, respectively. An ankylotic area was present in one tooth in group 3. None of the teeth in group 4 showed cemental repair. It was concluded that short-and long-term calcium hydroxide treatment resulted in similar healing patterns when endodontic treatment is initiated 14 days after replantation of teeth.
Root Resorptions on Adjacent Teeth Associated with Impacted Maxillary Canines
Diagnostics, 2022
Aim: Through the use of CBCT images, many unidentified features of impacted canines can be easily resolved. The potential collision of impacted maxillary canines and adjacent teeth could lead to root resorption (RR). The aim of this study is to examine the prevalence, location and severity of RR on adjacent teeth caused by impacted maxillary canines and the association between the adjacent teeth and the features of maxillary impacted canines on CBCT. Methods: This study examined 89 subjects with 108 maxillary impacted canines, having had no previous orthodontic treatment (mean age: 18.3 ± 4.1 years). The following impacted-canine-related parameters were analyzed on the CBCT images: location; RR levels on adjacent teeth; occlusal line and midline distances of impacted canines; and the angulations of impacted canines to the midline, lateral incisor and occlusal line. Logistic regression was used to evaluate the association between RR and the measured parameters on CBCT. Results: In th...
International Journal of Case Reports and Images, 2023
Invasive cervical resorption is a type of external resorption, which is generally located in the cervical region of the tooth. The resorptive process can be caused by physiological, pathological, hormonal, and trauma factors. The present study aimed to report a case of invasive cervical resorption in tooth 12 identified as an incidental finding, in which all available clinical resources were used, as well as a combined multidisciplinary treatment of endodontics, orthodontics, surgery, and prosthesis. At the initial consultation, the tooth presented with Heithersay's class II resorption, undergoing endodontic treatment and traction for subsequent cavity sealing. After completion of orthodontics, an increase in the resorptive pocket was observed (Class III of Heithersay), which led to endodontic retreatment and subsequent surgical intervention to remove the granulation tissue and fill it with bioceramic material. The preparation of the coronal remnant and fabrication of a prosthetic restoration were performed, with the aim of shielding the endodontic cavity and functionally restoring the tooth.
Morphologic criteria for root canal treatment of primary molars undergoing resorption
Dental Traumatology, 1995
criteria for root canai treatment of primary molars undergoing resorption. Endod Dent Traumatol 1995; 11: 136-141. © Munksgaard, 1995. Abstract -The endodontic anatomy of primary molars is difficult to predict because of thè balance of resorption and hard tissue deposition. In particular, thè resorption causes perforating lacunae across thè wall of thè root, even at thè furcation level, and modifies shape, dimension and position of endodontic apex. The phenomenon can be so deep as to compromise endodontic therapy. The first aim of thè study was to verify if reliable criteria can be found for treatability in primary molars undergoing resorption, i.e. if it is possible to predict if perforating lacunae are present or not. The second aim of thè study was to verify if other informations needed for endodontic treatment, as shape, dimension and location of thè apex, and curvature of thè root canai can be predicted. For thè study, 80 extracted primary molars, 75 of which pulpally involved by caries, were selected. The treatability was evaluated in term of root length, root shape, dimension and shape of endododntic apex, age of thè patient and Xray index of resorption. The association between variables was performed by multiple correspondence analysis. The results suggested that root length was thè most reliable criterion of thè integrity of thè root. The borderline of treatability was at thè length of 4 mm. The position of endodontic apex related to anatomical apex, and thè linguai related to thè buccal root length were analyzed by linear regression analysis. The canai length was often similar to thè root length (i.e. thè endo and anatomical apices were very dose) in lower and upper molars. However, in lower molars, if two or more canals were present in thè same root, a discrepancy was observed between buccal and linguai root length. This finding was Constant in first lower molars. In addition regression analysis provided a linear function between thè lengths of thè buccal and linguai side of thè same root in lower molars. Its coefficieiu b was 0.73.