Alveolar Bone Loss ; etiology ; therapy ; Alveolar Ridge Augmentation ; Dental Implantation, Endosseous ; Dental Prosthesis, Implant-Supported ; Guided Tissue Regeneration, Periodontal ; Humans ; Periodontal Diseases ; complications

OBJECTIVETo observe the movement of rat's tooth in the area of defective alveolar bone filled with bioglass in comparison with contralateral tooth.

METHODSForty female Wistar rats were selected. Defects in alveolar bones were created and filled with bioglass. Orthodontic appliances were fixed to mesially guide the maxillary first molars.

RESULTSThe rats' teeth were mesially moved in the area filled with bioglass. There were no significant differences between two sides in movement distance of the first molars and in thickness of periodontal tissues with paired t-test (P > 0.05).

CONCLUSIONSThe rat's tooth can be mesially moved in the area filled with bioglass.

Alveolar Process ; injuries ; surgery ; Animals ; Biocompatible Materials ; Female ; Glass ; Molar ; physiology ; Periodontal Ligament ; physiology ; Periodontal Prosthesis ; Rats ; Rats, Wistar ; Tooth Movement Techniques

Intellectual disability is an imperfect disorder in which mental development is permanently retarded and development of intellectual ability is inadequate. Having intellectual disabilities makes it difficult to handle their own work and adapt to social life. For this reason, it is difficult to hygienically manage the patient's oral condition, multiple caries are easily observed, and the periodontal disease incidence rate is high. The patient in this case is a 33-year-old female with a mental retardation first grade who had a problem with meals. In first visit, Patients had decreased occlusal vertical dimension and posterior bite collapse due to periodontitis and multiple caries. This case reports a satisfactory functional and esthetic results by reconstructing occlusion using partial removable dental prosthesis.
Adult ; Dental Prosthesis* ; Female ; Humans ; Incidence ; Intellectual Disability ; Meals ; Mouth Rehabilitation* ; Mouth* ; Periodontal Diseases ; Periodontitis ; Vertical Dimension

OBJECTIVES: In order to aid the development of practical oral health improvement programs for adults, this study examined whether a correlation exists between oral health indices assessed by experts and self-perceived oral health status. METHODS: Raw data from the second year (2013–2015) of the sixth Korea National Health and Nutrition Examination Survey were analyzed. Among those surveyed, adults over the age of 19 were designated as research subjects. RESULTS: The DT indices, prosthetics indices, and Community Periodontal indices were higher when the subjective oral health status was “Bad.” CONCLUSIONS: The results of this study demonstrated the consistency between subjective and objective oral health status. Thus, self-perceived oral health status is a reliable index to evaluate adult oral health projects for improving the quality of life of adults, improving their oral health, and evaluating future oral health services.
Adult ; Dental Caries ; Dental Prosthesis ; Humans ; Korea ; Nutrition Surveys ; Oral Health ; Periodontal Index ; Quality of Life ; Research Subjects

PURPOSE: The aim of this study was to analyze the prevalence and risk indicators of peri-implantitis in Korean patients with history of periodontal disease. METHODS: A total of 444 patients with 1,485 implants were selected from patients who had been treated at the Department of Periodontology, Chonbuk National University Dental Hospital between July 2014 and June 2015. A group with a history of peri-implantitis (HP) (370 patients with 1,189 implants) and a group with a current peri-implantitis (CP) (318 patients with 1,004 implants) were created based on the radiographic and clinical assessments of implants. The prevalence of peri-implantitis was calculated at both the patient and implant levels. The influence of risk variables on the occurrence of peri-implantitis was analyzed using generalized estimating equations analysis. RESULTS: The prevalence of peri-implantitis in the HP and CP groups ranged from 6.7% to 19.7%. The cumulative peri-implantitis rate in the HP group estimated with the Kaplan-Meier method was higher than that in the CP group over the follow-up period. Among the patient-related risk variables, supportive periodontal therapy (SPT) was the only significant risk indicator for the occurrence of peri-implantitis in both groups. In the analysis of implant-related variables, implants supporting fixed dental prosthesis (FDP) and implants with subjective discomfort were associated with a higher prevalence of peri-implantitis than single implants and implants without subjective discomfort in the HP group. The presence of subjective discomfort was the only significant implant-related variable predictive of peri-implantitis in the CP group. CONCLUSIONS: Within the limitations of this study, the prevalence of peri-implantitis in Korean patients with a history of periodontal disease was similar to that reported in other population samples. Regular SPT was important for preventing peri-implantitis. Single implants were found to be less susceptible to peri-implantitis than those supporting FDP. Patients' subjective discomfort was found to be a strong risk indicator for peri-implantitis.
Cross-Sectional Studies* ; Dental Implants ; Dental Prosthesis ; Follow-Up Studies ; Humans ; Jeollabuk-do ; Methods ; Peri-Implantitis* ; Periodontal Diseases* ; Prevalence* ; Risk Factors

PURPOSE: The aim of this review was to analyze the evaluation criteria on mandibular implant overdentures through a systematic review and suggest standardized evaluation criteria. MATERIALS AND METHODS: A systematic literature search was conducted by PubMed search strategy and hand-searching of relevant journals from included studies considering inclusion and exclusion criteria. Randomized clinical trials (RCT) and clinical trial studies comparing attachment systems on mandibular implant overdentures until December, 2011 were selected. Twenty nine studies were finally selected and the data about evaluation methods were collected. RESULTS: Evaluation criteria could be classified into 4 groups (implant survival, peri-implant tissue evaluation, prosthetic evaluation, and patient satisfaction). Among 29 studies, 21 studies presented implant survival rate, while any studies reporting implant failure did not present cumulative implant survival rate. Seventeen studies evaluating peri-implant tissue status presented following items as evaluation criteria; marginal bone level (14), plaque Index (13), probing depth (8), bleeding index (8), attachment gingiva level (8), gingival index (6), amount of keratinized gingiva (1). Eighteen studies evaluating prosthetic maintenance and complication also presented following items as evaluation criteria; loose matrix (17), female detachment (15), denture fracture (15), denture relining (14), abutment fracture (14), abutment screw loosening (11), and occlusal adjustment (9). Atypical questionnaire (9), Visual analog scales (VAS) (4), and Oral Health Impact Profile (OHIP) (1) were used as the format of criteria to evaluate patients satisfaction in 14 studies. CONCLUSION: For evaluation of implant overdenture, it is necessary to include cumulative survival rate for implant evaluation. It is suggested that peri-implant tissue evaluation criteria include marginal bone level, plaque index, bleeding index, probing depth, and attached gingiva level. It is also suggested that prosthetic evaluation criteria include loose matrix, female detachment, denture fracture, denture relining, abutment fracture, abutment screw loosening, and occlusal adjustment. Finally standardized criteria like OHIP-EDENT or VAS are required for patient satisfaction.
Dental Implants ; Denture Rebasing ; Denture, Overlay* ; Dentures ; Female ; Gingiva ; Hemorrhage ; Humans ; Mandibular Prosthesis ; Occlusal Adjustment ; Oral Health ; Patient Satisfaction ; Periodontal Index ; Survival Rate ; Visual Analog Scale ; Surveys and Questionnaires

OBJECTIVES: To determine the prevalence and oral characteristics of cancer patients treated with bisphosphonates in the oncology and maxillofacial prosthesis departments of the General Hospital of Mexico between 2011 and 2013. MATERIALS AND METHODS: This cross-sectional study included patients who received prior treatment with bisphosphonates; an intraoral examination was performed by 2 standardized examiners. RESULTS: The prevalence of bisphosphonate-related necrosis in 75 patients was 2.6%; the most common malignancy was breast cancer (84.0%), followed by prostate cancer (16.0%). Exostosis was present in 9.3% of patients and the mean Decayed, Missing, Filled Teeth index was 4.64; 44.0% of the study group had a Community Periodontal Index value between 2 and 2.9 (mean, 0.60). CONCLUSION: A detailed intraoral assessment must be performed before initiating treatment with bisphosphonates to identify risk factors for osteonecrosis.
Breast Neoplasms ; Cross-Sectional Studies ; Diphosphonates* ; Exostoses ; Hospitals, General* ; Humans ; Jaw* ; Maxillofacial Prosthesis ; Mexico* ; Necrosis ; Osteonecrosis* ; Periodontal Index ; Prevalence* ; Prostatic Neoplasms ; Risk Factors ; Tooth

The purpose of this study was to observe histopathologically the influence of advanced periodontitis on pulp tissue, and to conclude the correlation between the results with clinical madifestations. The samples were teeth with over 7mm pocket depth and over 50% radiographic bone loss. These were diagnosed to have very poor prognosis and thus planned to be extracted. Those with any of following conditions were excluded from the samples, loss of vitality, periapical pathology, restoration or prosthesis, dental caries, and attrition or abrasion. It was because these conditions could affect pulp without any correlation with periodontal disease. For the experiment, 17 teeth from 11 patients were selected. Average age of patient was 47. Each tooth was examined for following categoris; pocket depth, gingival recession, electric pulp test, mobility, percussion test, sensitivity test. The extracted teeth were fixed buffered neutral formalin solution. It was decalcified using 4% nitric acid. Sliced histological samples observed using light microscope, for pulp status, and severeity of inflammation. 4 samples were excluded due to histologic sample discrepency. Thus 13 samples were subject to observation. 4 showed normal conditions. Focal reversable pulpitis was shown in 5 samples. Chronic pulpitis was observed 1 samples. Pulpal abscess observed in 3 samples.
Abscess ; Adult* ; Chronic Periodontitis* ; Dental Prosthesis ; Formaldehyde ; Gingival Recession ; Humans ; Inflammation ; Nitric Acid ; Pathology ; Percussion ; Periodontal Diseases ; Periodontitis ; Prognosis ; Pulpitis ; Tooth

Successful results of treatments using double crown prostheses for the partially edentulous patients who have a few remaining teeth have been reported in several journals. A double crown removable partial denture can be an alternative treatment for the patients with a poor periodontal condition of remaining teeth. Since a double crown removable partial denture can be applied without the risk of surgical operation to the medically compromised patients with a poor periodontal condition which is inadequate for dental implants, it has psychological and economical advantages. In this case, there were sufficient remaining teeth to be restored with fixed prostheses in maxilla, while there were a few remaining teeth with a very poor periodontal condition so that it was almost impossible to restore with a clasp removable partial denture using these remaining teeth in mandible. In addition, the patient had the medical history of surgical operation due to osteomyelitis in the mandibular anterior areas a year ago, thus difficult to conduct an implant placement. The main objective of this report is to introduce our case because a double crown partial denture using a few mandibular remaining teeth showed satisfactory results in functional and esthetical aspects during more than two years follow-up period in this unfavorable condition.
Crowns* ; Dental Implants ; Denture, Partial ; Denture, Partial, Removable ; Follow-Up Studies ; Friction* ; Humans ; Mandible ; Maxilla ; Osteomyelitis ; Periodontal Prosthesis* ; Prostheses and Implants ; Tooth*

Bone Regeneration ; Connective Tissue ; transplantation ; Dental Implants, Single-Tooth ; Dental Prosthesis, Implant-Supported ; Esthetics, Dental ; Guided Tissue Regeneration, Periodontal ; Humans ; Incisor