Dental Traumatology
SCIE-ISI SCOPUS (1985-1995,1999-2023)
1600-9657
1600-4469
Đan mạch
Cơ quản chủ quản: WILEY , Blackwell Munksgaard
Lĩnh vực:
Oral Surgery
Các bài báo tiêu biểu
Healing of periapical lesions of pulpless teeth after endodontic treatment with controlled asepsisAbstract Using a careful anaerobic bacteriological technique, bacteria were shown to be eliminated from infected root canals before the endodontic treatment was finished by root filling. Healing of the periapical lesions of the teeth was followed for 2–5 yr. The majority of the 79 lesions healed completely or decreased in size in such a way that they could be expected to heal. In 5 cases there was no or only an insignificant decrease in the size of the lesions. Two of these lesions were shown to contain bacteria of the species Actinomyces or Arachnid. In another case there were dentin chips in the periapical tissue. Periapical lesions which fail to heal in spite of careful bacteriological monitoring of the endodontic treatment may in some cases be due to an establishment of the bacteria outside the root canal in the periapical tissue. In these sites, the bacteria are inaccessible to conventional endodontic treatment.
Tập 3 Số 2 - Trang 58-63 - 1987
Detection of interleukin‐6 in human dental pulp and periapical lesionsAbstract— Pulpal and periapical diseases are characterized by inflammation. The cytokine IL‐6 is a major mediator of the host response to tissue injury and infection. This study examined the level of interleukin‐6 (IL‐6) in six inflamed human pulps and six human periapical lesions of endodontic origin using ELISA. Pulp samples from eight clinically impacted teeth were used as controls. The periapical samples exhibited significant levels of IL‐6 (mean= 78.1 ± 9 pg/mg protein) as did inflamed pulpal tissues (mean= 36±3.9 pg/mg protein) compared to healthy pulp (mean= 0.01±0.02 pg/mg protein). These data indicated that IL‐6 was produced and released locally in the inflamed pulpal and periapical lesions.
Tập 15 Số 1 - Trang 26-27 - 1999
C‐shaped root canals in mandibular second molars in a Chinese populationAbstract The purpose of this investigation was to study the prevalence of C‐shaped roots, root canal orifices, and root canals in the mandibular second molars of a Chinese population. A total of 581 second mandibular molars were collected in Hong Kong and Taiwan. The teeth were demineralized and placed in methyl salicylate to induce transparency. The pulp chamber floor was examined to ascertain the number of root canal orifices. Chinese ink was then injected into the root canal system to demonstrate the root canal anatomy. The mandibular second molars had separate roots in 66.4%, cone‐shaped roots in 2.1% and C‐shaped roots in 31.5%. The C‐shaped roots had C‐shaped canal orifices in 68.3% (21.5% of whole material). True C‐shaped root canals were observed in 65.8% of the teeth with C‐shaped orifices and in 13.9% of the whole material. Separate root canals were seen in 34.2% of the teeth with C‐shaped orifices. Separate canal orifices were found in 31.7% of the C‐shaped roots and 7.4% of these roots had true C‐shaped canals. In the whole material 0.9% of the roots with individual canal orifices had C‐shaped canals. In conclusion, C‐shaped root canals were common in mandibular second molars in the Chinese subjects studied. The C‐shaped root canals were often, but not always recognized because of a C‐shaped canal orifice.
Tập 4 Số 4 - Trang 160-163 - 1988
Treatment of open apex teeth using two types of white mineral trioxide aggregate after initial dressing with calcium hydroxide in children
Tập 27 Số 3 - Trang 166-173 - 2011
An experimental study of the stability of irradiated teeth in the region of the dentinoenamel junctionAbstract In this in vitro study we investigated the influence of ionizing gamma rays on the stability in the region of the dentinoenamel junction. We removed the enamel on the labial surface of 30 incisors of bovines up to the dentinoenamel junction, so that a circular area of enamel with a diameter of 2.0 ± 0.1 mm was left and an enamel cylinder was created. 15 teeth were irradiated by a cobalt‐60‐source (energy dose 70 Gy). The other 15 teeth were used as controls. Using a material testing apparatus the shear bond strengths were measured by breaking off the enamel cylinders. Furthermore, the breaking modes were investigated in SEM. Comparing the results of the shear bond strength experiments, it was obvious that the stability in the region of the dentinoenamel junction was significantly less among the irradiated teeth than among the non‐irradiated teeth. The median value of the gamma ray treated teeth was x̃= 19.1 MPa and that of the non‐ray‐treated teeth was x̃= 37.4 MPa. The non‐irradiated teeth showed fractured surfaces only in dentin in 10 cases and in 5 cases in both dentin and enamel. In contrast to that, the irradiated teeth had fractured surfaces in 12 cases exclusively in dentin and only in 3 cases the enamel was also fractured. These results lead us to conclude that changes of biophysical property of teeth can be caused by the influence of ionizing rays.
Tập 8 Số 6 - Trang 241-244 - 1992
The use of calcium hydroxide and mineral trioxide aggregate on apexification of a replanted tooth: a case reportAbstract – Aim: To report the outcome of the endodontic treatment of a reimplanted central maxillary incisor with open apex after 8 years and 7 months of follow‐up.Summary: This case report presents the treatment of a right central maxillary incisor of an 8‐year old white male patient with history of traumatic avulsion and immediate replantation. The endodontic therapy consisted of periodical changes of calcium hydroxide dressing and a definitive root canal filling with mineral trioxide aggregate (MTA). The treatment was successful without pathologies up to 7 years of follow‐up. After the institution of orthodontic treatment a localized and late root resorption was noticed at the last radiographic examination (8 years and 7 months postoperative follow‐up). Moreover, the use of MTA promoted a mild crown grey discoloration.
Tập 25 Số 3 - 2009
Evaluation of the topical effect of alendronate on the root surface of extracted and replanted teeth. Microscopic analysis on rats’ teethAbstract – The treatment of choice for tooth avulsion is replantation. The ideal replantation should be realized as quickly as possible, or at least, the avulsed tooth should be kept in an adequate solution to preserve the periodontal ligament attached to the root. If that is not possible, treatment of the radicular surface should be done in order to prevent radicular resorption. The purpose of this study was to test sodium alendronate as a substance for topical treatment of the radicular surface of avulsed teeth in an attempt to prevent the occurrence of dental resorptions. Fifty‐four rat maxillary right central incisors were extracted and replanted. Group I – extra‐alveolar dry period of 15 min, intracanal dressing with calcium hydroxide (CALEN® , S.S. White, Artigos Dentários LTDA, Rio de Janeiro, Brazil) and replantation; Groups II and III – extra‐alveolar dry periods of 30 and 60 min, respectively, immersion in 1% sodium hypochlorite for 30 min for removal of the periodontal ligament, washing in saline solution for 5 min, and treatment of the radicular surface with 3.2 mg/l sodium alendronate solution for 10 min. Intracanal dressing with calcium hydroxide and replantation followed. At 15, 60, and 90 days post‐reimplantation, the animals were killed and the samples obtained and processed for microscopic analysis. The results indicated that sodium alendronate was able to reduce the incidence of radicular resorption, but not of dental ankylosis. No significant differences were observed regarding variations in the extra‐alveolar periods among the groups.
Tập 22 Số 1 - Trang 30-35 - 2006
Evaluation of the fracture resistance of reattached incisal fragments using different materials and techniques
Tập 27 Số 1 - Trang 15-18 - 2011
Inner city maxillofacial fractures due to road traffic accidentsAbstract – A prospective study of 159 patients seen with maxillofacial fractures as a result of road traffic accidents in a Nigerian inner city was performed. The male to female ratio was 2.9 : 1 and the dominant age group was 21–30 years. Occupants of commercial vehicles were the ones mostly involved; involvement of rear seat occupants was high. Increased numbers of patients were seen on Saturdays and in the month of June. This study substantiates the fact that there is added risk of sustaining facial fractures during the rainy and leisure periods. Therefore, there is a need to stress the importance of common restraint devices and good road habits during these ‘high risk’ periods to reduce the incidence of maxillofacial fractures due to the road traffic accidents.
Tập 19 Số 1 - Trang 2-5 - 2003
Autotransplantation of an immature premolar, with the aid of cone beam CT and computer‐aided prototyping: a case reportAbstract – Autotransplantation of immature teeth has good survival rates, and has benefits over ossointegrated implants in the growing child, but is very technique sensitive. Spiral CT imaging has been previously used in adult patients to enable computer‐aided prototyping to produce a surgical template of the donor tooth, further increasing success rates. Case report : The case presented describes management of a 9‐year‐old girl with the combination of hypodontia affecting the upper lateral incisors as well as a severely ectopic maxillary canine. Cone beam CT was used in combination with computer‐aided prototyping to produce a surgical template of an immature mandibular second premolar. The surgical template was used to prepare the transplant site before the donor tooth was extracted, greatly reducing the time from extraction to implantation. By 6 months posttransplant the tooth was clinically sound, and continued root development and laying down of dentine was visible radiographically. Discussion : This paper demonstrates the use of a novel technique to aid the surgical procedure of autotransplantation of immature premolar teeth. The use of autotransplantation in this case allowed the difficult situation of two missing units in the upper left quadrant to be reduced to one unit, while retaining symmetry in the upper arch. Compared to previous studies, the use of cone beam CT to create a 3D prototype reduced radiation dose compared to spiral CT and drastically reduced the extra‐oral time of the donor tooth from extraction to transplantation.
Tập 26 Số 2 - Trang 195-199 - 2010