Research on clinical effect of different healing modes in OSSTEM implant system / 重庆医学

Objective To observe the short term clinical effect of OSSTEM implant system in the treatment of submerged and non-submerged healing in posterior region.Methods Sixty-two patients(80 OSSTEM implants) in the oral and maxillofacial surgery department of the First Affiliated Hospital of Chongqing Medical University from July 2013 to July 2015 were randomly divided into the group A (submerged healing) and B (non-submerged healing).The lack of teeth area in all subjects was performed the OSSTEM artificial teeth routine implant,moreover the changes of peri-implant bone level,gingival bleeding index and implant retention rate were performed the comparative analysis after 1-year load.The peri-implant bone level was performed the statistical analysis by adopting the independent sample T test and the gingival bleeding index was analyzed by adopting the Fisher exact probability test using SPSS17.0 software package.Results The implant retention rates in both groups were 100%.The medial peri-implant bone levels were (0.59±0.19) mm in the group A and (0.58±0.21)mm in the group B,the difference had no statistical significance(P>0.05).The distal peri-implant bone levels were (0.55±0.19) mm in the group A and (0.56±0.20)mm in the group B,the difference between the two groups had no statistical significance(P>0.05).Conclusion The submerged healing and non-submerged healing in OSSTEM implant system can achieve good implant healing of soft and hard tissue and bone integration,the effect is good,which all can serve as the routine healing mode of OSSTEM implant.

Efficacy of dentifrices containing policresulen in controlling dental plaque and gingivitis formation / 대한구강보건학회지

OBJECTIVES: This clinical study aimed to investigate if dentifrices containing policresulen would help to control dental plaque and gingivitis. METHODS: Seventy-eight eligible adults participated in this double-blind and randomized clinical study after an initial oral examination, calculus removal, and tooth prophylaxis. Two weeks after the procedure, the participants were assigned to three groups using the following dentifrices: (1) a dentifrice containing 0.22% NaF (control group); (2) a dentifrice containing 0.22% NaF and 100 ppm policresulen (policresulen group); and (3) a dentifrice containing 0.22% NaF, 100 ppm policresulen, and 1.00% bamboo salt (policresulen/bamboo group). The participants used only the provided dentifrice (for 1 min, twice a day, over 8 weeks) when brushing their teeth and followed their normal brushing habits. Dental plaque accumulation and gingivitis measurements were conducted using the Turesky modification of the Quigley-Hein plaque index (PI), the Loe and Silness gingival index (GI), and the percent bleeding on probing (%BOP) to obtain baseline data and 4- and 8-week data after grouping. RESULTS: A total of 73 participants aged 35.92+/-11.46 years (mean+/-SD) completed the study. The results after 8 weeks demonstrated statistically significant group-by-time interactions for PI, GI, and %BOP (P<0.001). The PI observed in the control groups increased over time up to 6%, while that observed in the dentifrice groups containing policresulen decreased by 5% (P<0.001). For GI and %BOP, the control group exhibited significantly higher values after 8 weeks, while the policresulen and the policresulen/bamboo groups revealed similar index values as the baseline after 4 and 8 weeks. The changes in all indices were significantly different between the control and the two experimental groups. There were no significant differences in the results obtained from the policresulen/bamboo group and the results obtained from the policresulen group. CONCLUSIONS: Use of dentifrices containing policresulen over 8 weeks demonstrated anti-plaque and anti-gingivitis efficacy compared to a control dentifrice.

Parámetros periodontales en adolescentes con ortodoncia / Periodontal parameters in adolescents with orthodontic appliances

Fundamento: la ortodoncia puede dificultar la remoción de la placa bacteriana e incrementar el efecto inflamatorio que produce sobre los tejidos gingivales. Objetivo: evaluar el estado de salud gingival de adolescentes con y sin ortodoncia, comparando sus parámetros periodontales. Métodos: en el presente estudio observacional de corte trasversal, el universo estuvo constituido por 64 sujetos (32 con ortodoncia y 32 sin ortodoncia). La profundidad de sondaje se midió con una sonda calibrada en seis sitios por diente (mesobucal, bucal, distobucal, distolingual, lingual y mesolingual) en todos los dientes, se excluyó el tercer molar. En cada sitio del diente también se evaluó el nivel de inserción clínica, la presencia de placa y el sangrado al sondaje. Resultados: se observaron diferencias significativas en los niveles de placa y en el sangrado al sondaje entre los dos grupos, superiores en los adolescentes con ortodoncia. La asociación entre los niveles de placa y sangrado al sondaje para los dos grupos de estudio fue estadísticamente significativa (p< 0.01). Conclusiones: las condiciones periodontales de los adolescentes con aparatología ortodóntica se deben monitorear regularmente debido a que presentan una mayor tendencia a la acumulación de la placa bacteriana que ocasiona sangrado e inflamación gingival.

Background: orthodontic appliances can make the removal of the bacterial plaque difficult and increases the inflammatory effect that is produced on the gingival tissues. Objective: to assess the gingival health condition of adolescents with or without orthodontic appliances, comparing their periodontal parameters. Methods: in the present observational, cross-sectional study, the universe was composed of 64 individuals (32 with orthodontic appliances and 32 without orthodontic appliances). The probing depth was measured with a calibrated probe in six sites per tooth (mesobuccal, buccal, distobuccal, distolingual, lingual, mesolingual) in all the teeth; the third molar was excluded. In every site of the teeth, the clinical attachment level, the presence of plaque and the bleeding at probing, were assessed. Results: significant differences in the plaque levels and in the bleeding at probing were observed between both groups, being higher in the adolescents with orthodontic appliances. The association between the plaque levels and the bleeding at probing for both groups was statistically significant (p< 0.01). Conclusions: periodontal conditions of the adolescents with orthodontic appliances should be regularly monitored since these appliances have a higher tendency to the accumulation of bacterial plaque that provokes bleeding and gingival inflammation.

Analysis of causes of tooth extraction postoperative bleeding / 中国基层医药

Objective To explore the causes of bleeding after tooth extraction,and provide clinical preventive interventions for the occurrence of bleeding after tooth extraction.Methods 120 cases of bleeding after tooth extraction patients were selected as research subjects,their clinical data were retrospectively analyzed.Results The location of bleeding after tooth extraction analysis were as following:bleeding mandibular molar proportion of 46.7％ ;maxillary molar tooth bleeding proportion of 36.6％ ; anterior mandibular molar tooth bleeding after the proportion 6.7 ％ ;maxillary premolar bleeding proportion was 5.8％ ;the anterior mandible proportion of 2.5 ％ ;the anterior maxilla proportion 1.7％ ;extraction postoperative bleeding time more concentrated within 8 hours after surgery,65.0％ ;occur 15.8％ in the proportion of 8 to 12 hours after surgery;14.2％ in the proportion of 13 to 24 hours after surgery;bleeding time of over 24 hours compared to 5.0％ ;retrospective analysis found the cause of the bleeding,gingival the tissue tearing lead to bleeding the proportion of 41.7％ ; extraction sockets tissue residues cause bleeding ratio of 15.0％ ;sutures become loose resulting in bleeding was 4.2％ ;alveolar bone fracture cause bleeding ratio of 13.3％ ;tooth fossa vascular ruptured bleeding ratio of 9.2％.Conclusion After tooth extraction bleeding occurred within 8h after surgery,to mandibular teeth bit bleeding is the most common,cause more bleeding after tooth extraction,strictly regulate the operation for bleeding has an important role in the prevention of tooth extraction.

Screening for diabetes mellitus using gingival crevicular blood with the help of a self-monitoring device

PURPOSE: The purpose of study was to compare blood glucose in capillary finger-prick blood and gingival crevice blood using a self-monitoring blood glucose device among patients with gingivitis or periodontitis. METHODS: Thirty patients with gingivitis or periodontitis and bleeding on probing (BOP) were chosen. The following clinical periodontal parameters were noted: probing depth, BOP, gingival bleeding index, and periodontal disease index. Blood samples were collected from gingival crevicular blood (GCB) and capillary finger-prick blood (CFB). These samples were analyzed using a glucose self-monitoring device. RESULTS: Descriptive statistical analysis has been carried out in the present study. Data were analyzed using a Pearson's correlation coefficient and Student's t-test. A r-value of 0.97 shows very strong correlation between CFB and GCB, which was statistically highly significant (P<0.0001). CONCLUSIONS: The authors conclude that GCB may serve as potential source of screening blood glucose during routine periodontal examination in populations with an unknown history of diabetes mellitus.