Rapidly progressive internal root resorption: a case report.

The etiology of internal root resorption is not fully understandable, trauma and chronic pulpitis are considered the main risk factors. Usually the process is asymptomatic and diagnosed upon routine radiographic examination. This case report presents a rapid progression of internal resorption related directly to traumatic injury. A 16-year-old female arrived at the emergency room after a mild extrusion of the mandibular incisors. The initial treatment included repositioning and splinting of the teeth. Radiographs performed at repositioning and splinting demonstrated normal configuration of the incisor's roots. Ten months later progressive internal resorption of the left mandibular first incisor was diagnosed. While treating this tooth similar process was detected in the right mandibular second incisor and in the mandibular left second incisor. The lower right first incisor reacted inconsistently to vitality test. As a result of the severe and rapidly progressive nature of the process, root canal treatments were performed in all lower incisors. The follow-up radiographs demonstrate arrest of the internal resorption process.

Healing of a fibrous dysplastic lesion in a permanent molar after endodontic therapy.

Fibrous dysplasia presents in two forms: monostotic and polyostotic. Both forms are more widespread among children and juveniles and may result in facial asymmetry. Neoplastic bone lesions, localized over the root apices and mimicking periapical pathosis, have been observed. Irregular pulp morphology not previously reported is described in the following case report. A 14-year-old boy diagnosed with fibrous dysplasia was referred for endodontic treatment as the result of a necrotic pulp in an upper molar. A periapical lesion was diagnosed when the tooth was intact. After complex root canal treatment the periapical lesion healed.

Dental complications following gastric restrictive bariatric surgery.

BACKGROUND: Morbid obesity is a scourge of the 21st century. The effective therapeutic measure is bariatric surgery. The medical literature has inadequately reported the potential deleterious effects of such surgery on dental health. Acidic levels in the oral cavity, which are known to be one of the postoperative side-effects of bariatric surgery, directly result in dental caries and tooth erosion. We investigated the self-assessment of postoperative bariatric patients with regard to their dental health and associated variables. METHODS: 113 patients (25% compliance), who had been operated on in three Jerusalem hospitals, responded to a mailed questionnaire. RESULTS: Patients' average age was 40+/-10 years; bariatric surgery had been performed 5+/-4 years previously. Of the patients, 37% reported eating more sweet foods after surgery, only 20% reported improved oral hygiene, only 34% reported increased frequency of visits to the dentist, and 37% reported greater dental hypersensitivity after surgery. Significant associations were found between reported dental hypersensitivity and vomiting (P=0.013), and also dental hypersensitivity and indigestion (P=0.021). Patients from the three hospitals reported different patterns of visits to the dentist. The most common variable (80% of the subjects) associated with visits to the dentist after surgery was dental hypersensitivity. CONCLUSION: Medical teams need to consider potential dental problems after bariatric surgery, and to supply their patients with the appropriate information and instructions regarding oral hygiene maintenance, healthy dietary patterns and regular dental health monitoring by a dentist or dental hygienist.

The effect of instrumentation with two different file types, each with 2.5% NaOCl irrigation on the microhardness of root dentin.

The aim of this study was to measure root-dentin microhardness after instrumentation with two types of files and using irrigation with 2.5% sodium hypochlorite. Thirty roots were instrumented with irrigation: 10 roots had the pulp extirpated only; 10 roots were instrumented with stainless steel files, and 10 roots were instrumented with rotary nickel-titanium (NiTi) files. Additionally, five roots were extirpated only without irrigation and served as a control. The roots were sliced and root-dentin microhardness was determined at depths of 500 microm and 1000 microm from the pulp-dentin interface. Significant differences were found between the microhardness at 500 microm and 1000 microm (p < 0.001) in all groups. Instrumentation with NiTi rotary files affected dentin microhardness significantly to a lesser extent.

Effect of sodium hypochlorite on dentin microhardness.

This study was designed to evaluate the effect on root dentin microhardness of 2.5% and 6% sodium hypochlorite solutions for various irrigation periods. Forty-two bovine roots were divided into seven groups. The control group was irrigated with saline. The experimental samples were continuously irrigated with 2.5% or 6% NaOCl for 5, 10, or 20 min. Microhardness was measured at depths of 500 mum, 1000 mum, and 1500 mum from the lumen. A decrease in microhardness was found at 500 mum between the control and samples irrigated with 6% NaOCl and 2.5% NaOCl (p = 0.352, p = 0.084 respectively) at all irrigation periods. There also was a significant difference in groups irrigated for 10 or 20 min (p = 0.001, p < 0.001 respectively). At all distances, the decrease in microhardness was more marked after irrigation with 6% NaOCl than 2.5% NaOCl.

Cytotoxic chemotherapy-induced odontalgia: a differential diagnosis for dental pain.

INTRODUCTION: Peripheral neurotoxicity and neuropathic pain are well-known complications of several anti-cancer chemotherapeutic agents. Such pain might cause an impairment of the patient's quality of life and is a common limiting factor of anti-cancer chemotherapy. Neurotoxicity in orofacial structures has been previously described as diffuse jaw pain or numbness. Currently, localized pulpal pain is not listed as a possible complication of cytotoxic therapy. The aim of this report was to suggest cytotoxic-induced neurotoxicity as a differential diagnosis for toothache during anti-cancer therapy. METHODS: We described the diagnostic process in a patient suffering from severe pulpal pain in apparently intact teeth during cytotoxic therapy. A non-Hodgkin's lymphoma patient complained of 2 episodes of excruciating dental pain evoked by mouth breathing, which caused nocturnal awakenings. RESULTS: Both episodes developed immediately after administrations of cyclophosphamide as part of an anti-cancer chemotherapy protocol. Clinical parameters and radiographic characteristics eliminated other possible dental and facial etiologies. Pulp extirpation (pulpectomy) resulted in immediate pain relief. In both episodes, cytologic evaluation of the extirpated pulp tissue failed to show inflammation or an infiltration of lymphoma cells. CONCLUSIONS: This case presented a circumstantial relation between the clinical presentation of dental pain, with associated significant impairment of the patient's quality of life, and the timing of administrations of high-dose cyclophosphamide. It suggests that chemotherapy-induced toxicity might manifest as pulpitis-like toothache, which might present a diagnostic challenge for the dental practitioner.

Odontogenic sinus tracts: a cohort study.

OBJECTIVE: To determine the prevalence,location, and distribution of sinus tracts in patients referred for endodontic consultation. METHOD AND MATERIALS: This cohort study included 1,119 subjects referred for endodontic consultation, 108 of whom presented with sinus tracts. Following clinical and radiographic examination, the diameter of the rarifying osteitis lesion on the radiograph was measured and the path and origin of the sinus tracts determined. Signs and symptoms, tooth site,buccal/lingual location, and diameter were recorded. Data were statistically analyzed using Pearson chi-square test. RESULTS: Sinus tracts originated mainly from maxillary teeth (63.1%); only 38.9% originated from mandibular teeth. Chronic periapical abscess was the most prevalent diagnosed origin (71.0%). Broken restorations were highly associated with the presence of sinus tracts (53.0%). The most frequent site of orifices was buccal(82.4%), followed by lingual or palatal (12.0%). Orifices on the lingual aspect of the gingiva were observed in mandibularmolars. There was an 86.8% correlation between the occurrence of an apically located sinus tract and apical rarifying osteitis(P<.01). CONCLUSION: Sinus tract in the lingual or palatal aspect of the gingiva is relatively common. Practitioners should look for signs of sinus tract during routine examination

Multiple sinus tracts as a result of root fracture: a case report.

Sinus tracts are a consequence of chronic apical disease or vertical root fractures. They are usually diagnosed upon routine clinical examination or in response to patient complaints of swelling and occasional pus secretion. An unusual case report of a maxillary canine with multiple orifices of sinus tracts is presented. Vertical root fracture was confirmed after removal of the root canal filling under an operating microscope. Clinicians should suspect vertical root fracture when multiple sinus tracts originating from the same tooth are observed.

The fate of a mid-root fracture: a case report.

The present report describes a case of a mid-root fracture in a maxillary central incisor of a 19-year-old patient. The fractured tooth was splinted with composite that was removed only 3 years later, as the patient did not appear for follow-up examinations. At this time, the radiographs revealed a normal periodontal ligament, rounding of the borders of the fragments and pulp obliteration of both fragments. Eight years later, the tooth was clinically normal and blurred calcification of the root canal was disclosed radiographically. After 13.5 years the patient complained of tooth mobility and radiographic examination revealed an advanced cervical root resorption. As no conservative approach was possible at this stage, the patient was referred to a prosthodontist for esthetic rehabilitation.

Emergency orthodontic treatment after the traumatic intrusive luxation of maxillary incisors.

Treatment of traumatically intruded teeth is based largely on empirical clinical experience rather than on scientific data. The aim of this qualitative meta-analysis was to provide an evidence base to evaluate the orthodontic repositioning approach. In a MEDLINE search of the literature in English, 14 reported patients involving 22 teeth were found to have been treated by this modality. Additionally, 3 new patients, involving 9 intruded teeth and presented herein, were combined to form a total study sample of 17 subjects (7 girls, 10 boys, aged 8.9 +/- 1.2 years). Orthodontic extrusive forces were applied in the immediate posttrauma period (up to 3 months), with a variety of orthodontic appliances. Repositioning was achieved for 90.3% of the affected teeth but failed in 9.7% because of inflammatory resorption (2 teeth) or a misdiagnosis of root fracture (1 tooth). Early complications included loss of pulp vitality and external root resorption. All intruded teeth with closed root apices lost their vitality regardless of the degree of intrusion, whereas among those with incomplete apices, 45.5% that had been moderately intruded remained vital. External resorption was encountered in 54.8% of the teeth. Loss of marginal bone support was rarely encountered. Late complications included inflammatory root resorption in teeth with closed apices, in which endodontic treatment was not initially performed, and obliteration of the pulp tissue in teeth that remained vital. The results show that this method is superior to other treatment alternatives.

Endodontic failure caused by inadequate restorative procedures: review and treatment recommendations.

A review of the literature was performed to determine whether prompt placement of coronal restorations, including sealing and placement of posts and cores, can positively influence the long-term prognosis of teeth after root canal therapy. Both hand and MEDLINE searches were employed to identify peer-reviewed articles on radicular apical integrity after coronal restorations, especially where root canal space was used for post and core fabrication. A total of 41 articles published between 1969 and 1999 (the majority from the 1990s) were reviewed. The literature suggests that the prognosis of root canal-treated teeth can be improved by sealing the canal and minimizing the leakage of oral fluids and bacteria into the periradicular areas as soon as possible after the completion of root canal therapy.