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At least 19 recordsLinked to original sources
PubMed1976

Viridans streptococci associated with periapical dental abscesses.

Viridans streptococci isolated in apparently pure culture from periapical dental abscess have been examined. It has been found that each abscesses is associated with only one type of a given species of Streptococcus. The distribution of types of Strep. mitis found in abscesses differed from the distribution in healthy mouths, but no particular type occurred significantly more often in abscesses than in mouths.

Humans↗
PubMed2026

Outcomes and Associated Prognostic Factors for Orthograde Canal Obturation Using Ortho MTA III: A Randomised Prospective Clinical Trial.

AIM: To prospectively compare treatment outcomes for orthograde canal obturation using Ortho MTA III (OMTA) with the continuous wave of compaction (CWC) using gutta-percha (GP) and AH Plus sealer, and to identify associated predictive factors. METHODOLOGY: Informed consent was obtained (110 patients), and single- or two-rooted permanent teeth (n&#x2009;=&#x2009;120) diagnosed with pulp necrosis (or previously treated) and asymptomatic apical periodontitis or chronic apical abscess (periapical index, PAI&#x2009;&#x2265;&#x2009;3) were randomly assigned to two groups (n&#x2009;=&#x2009;60/group). The canals were prepared to a minimal apical size #40 (ISO) based on their initial file size, disinfected and obturated by either CWC or OMTA using an enhanced disinfection protocol (GP disinfected, new gloves after each intraoperative radiograph and before starting obturation). Clinical and periapical radiographic examinations were conducted by two calibrated, independent endodontists during follow-up periods of at least 12&#x2009;months. Success rates and associated predictive factors (tooth-, operator- and patient-related) were analysed statistically using binary and multiple logistic regression (p&#x2009;<&#x2009;0.05). RESULTS: The median recall period was 30&#x2009;months (14-48&#x2009;months), and 104 teeth were finally analysed (recall rate: 86.67%). No significant differences in success rate were observed between the groups (p&#x2009;>&#x2009;0.05) under both loose (OMTA: 88.24%, CWC: 83.02%) and strict criteria (OMTA: 64.71%, CWC: 58.49%). Multivariate analysis revealed that age (OR&#x2009;=&#x2009;5.735, 95% CI: 1.286-25.577, p&#x2009;=&#x2009;0.022), periapical lesion size (OR&#x2009;=&#x2009;6.596, 95% CI: 1.397-31.138, p&#x2009;=&#x2009;0.017) and PAI score (OR&#x2009;=&#x2009;2.081, 95% CI: 1.047-4.136, p&#x2009;=&#x2009;0.036) were significant predictors of treatment failure. CONCLUSIONS: Orthograde obturation of infected canals with Ortho MTA III demonstrated comparable success and treatment outcomes to those filled with GP and sealer by CWC, supporting its potential as a clinically viable alternative for the obturation of infected root canals. TRIAL REGISTRATION: cris.nih.go.kr registration number: KCT00099939.

Humans↗
PubMed1976

Metastatic melanoma of the maxilla presenting as a gingival swelling.

Malignant melanoma metastatic to the gingiva has been reported only once. We present a case in which the occurrence of melanoma in the gingiva followed extraction of a periapically "abscessed" tooth. Since the initial periapical mass may well have been a metastatic tumor, particularly in a patient undergoing therapy for disseminated malignant disease, the need for biopsy of such lesions is emphasized.

Adult↗
PubMed1977

Antibiotics and the intraoral abscess.

Sensitivity tests were administered to determine the effectiveness of several antibiotics in the management of the oral abscess. Cultures were taken from 13 patients who were diagnosed as having either a periodontal or periapical abscess. Results revealed the following 1. The most effective antibiotic was Chloromycetin. Yet it was felt that its medical contraindications far outweigh its use by the dental practitioner. 2. Tetracycline was the least effective antibiotic. 3. Penicillin, because of its high potency against microorganisms of the dental abscess, should be considered the drug of choice. Its use, however, must be restricted to patients who give a negative history to allergies and/or asthma; when such a history is positive, erythromycin should be used. 4. Appropriate culture and sensitivity tests should be performed to determine the susceptibility of the causative organism(s) to the drug of choice.

Adult↗
PubMed1992

Diagnostic dilemma: an unusual presentation of an infected nasopalatine duct cyst.

The pertinent literature on nasopalatine duct cysts is reviewed. A case is reported in which a nasopalatine duct cyst infected by Actinomyces presented clinically with unusual features. The clinical findings could have been confused with an early acute periapical abscess arising from an incisor tooth. The relevant aspects of diagnosis are discussed.

Actinomycosis↗
PubMed1977

Chronic dental fistule on the nose.

A case of chronic dental draining sinus on the dorsum of the nose is reported. The skin lesion, clinically simulating basal cell epithelioma, healed promptly after extraction and eradication of the periapical abscess of the right upper canine. The importance of considering this condition is emphasized in cases of chronic facial granulomatous or ulcerative lesions.

Adult↗
PubMed1992

A bacteriological and histological evaluation of 58 periapical lesions.

Periapical tissue from 58 cases requiring periapical surgery was examined histologically and cultured for the presence of microbes. Twenty-nine had a possible oral cavity communication and 29 did not. Approximately one-half of each biopsy was submitted for culture while the other portion was examined histologically. Cultures were positive for the presence of bacteria in 51 of 58 cases while bacteria were seen histologically in only 8 of 58 cases. A total of 50 different species of bacteria were isolated from the 58 cultures of periapical tissue. Of 133 isolates, 87 were strict anaerobes, 37 were facultative anaerobes, and 9 were aerobes. Bacteroides species were found in 17 cultures, always with additional bacteria. Seventeen of 58 biopsies contained foreign particulate matter thought to be root canal sealer. Bacteria were found in periapical granulomas, radicular cysts, and a periapical abscess. According to our data, bacteria, foreign material, missed canals, vertical root fractures, and periodontal disease may all contribute to the chronic, non-healing periradicular lesion.

Bacteria, Anaerobic↗
PubMed1976

Reddening of the upper central incisors associated with periapical granuloma in lepromatous leprosy.

Four years after starting treatment for lepromatous leprosy in England a male Pakistani aged 26 was found to have red discoloration of the upper central incisor teeth. A radiograph suggested periapical abscess on the right with haziness in a corresponding area on the left. Right apicectomy was performed with removal of a solid mass attached to the apex, sections revealing a lepromatous infiltrate with acid-fast fragments of Mycobacterium leprae in the cytoplasm of foamy macrophages. Clinical and archaeological evidence for the frequent involvement of these teeth in lepromatous leprosy is reviewed. The upper incisor area is relatively cool, a factor which may be of critical importance for the lodgement and multiplication of this bacillus, as it is in other body sites in lepromatous leprosy.

Adult↗
PubMed1979

Occult dental infection as a cause of fever of obscure origin.

Three patients with prolonged unexplained fevers were ultimately found to have deep-seated dental infection. After initial examination failed to elicit symptoms or signs of dental infection, and extensive in-hospital evaluation was nonproductive, dental consultation with roentgenograms provided the diagnosis. All three patients underwent dental extractions with periapical or peridontal debridement; following a brief postoperative febrile period, all three responded with defervescence, without subsequent recurrence of fever. These cases emphasize the importance of periapical and peridontal infection as causes of fever of obscure origin. The pathogenesis, characteristics and bacteriology of periapical abscess are discussed.

Aged↗
PubMed1975

Periapical tissue reactions after pulp exposure in rat molars.

Apical periodontal lesions were produced in the rat molar by exposing the pulp to the oral environment. The natural history of the undisturbed lesion was studied at time intervals ranging from 2 days to 1 year postoperatively. The earliest reactions were usually inflammatory infiltration at the apex. The severity of the lesions was related to the amount of vital pulp still present in the tooth rather than to the time lapse after exposure. After 1 month most pulps has undergone necrosis and the lesions about the apices which followed showed two main types of reaction. In the case of the suppurative reaction, pus drained along a root surface, destroying the periodontal ligament and interradicular bone until it emerged at the gingival sulcus. The sinus tract could become lined with oral epithelium. In the reparative type of reaction, suppuration was absent or minimal and the apices were surrounded by fibrous connective tissue. The fiber bundles occasionally formed a collagenous scar, but they were usually replaced by cementum and bone with a new periodontal ligament. The width of the periodontium was never restored to its normal dimensions. Secondary destruction of the teeth occurred by fracture of cusps followed by caries which started in the exposed pulp chamber. Despite the predominance of destructive factors, spontaneous repair indicated good healing potential of the apical periodontal tissues.

Animals↗
PubMed1979

Response of periapical pathosis to endodontic treatment in monkeys.

Response of induced periapical lesions in monkeys to a conventional endodontic technique was investigated at varying periods ranging from 15 to 365 days after treatment. The findings indicate that response to treatment is influenced by the extent of the root canal filling, the time lapse between treatment and death, and the presence or absence of bacteria in the apical portion of the canal.

Animals↗
PubMed1992

Endodontic interappointment flare-ups: a prospective study of incidence and related factors.

Severe pain and/or swelling following a root canal treatment appointment are serious sequelae. Information varies or is incomplete as to the incidence of these conditions and related factors. In this study, data were collected at root canal treatment appointments on demographics, pulp/periapical diagnoses, presenting symptoms, treatment procedures, and number of appointments. Patients that then experienced a flare-up (a severe problem requiring an unscheduled visit and treatment) had the correlating factors examined. Statistical determinations were by chi-square analysis with significance at 0.05 or less. Nine hundred forty-six visits resulted in an incidence of 3.17% flare-ups. Flare-ups were positively correlated with more severe presenting symptoms, pulp necrosis with painful apical pathosis, and patients on analgesics. Fewer flare-ups occurred in undergraduate patients and following obturation procedures. There was no correlation between patient demographics or systemic conditions, number of appointments, treatment procedures, or taking antibiotics.

Acute Disease↗