The clinical evaluation of Vi-one chlorhexidine mouthwash on plaque-induced gingivitis: A double-blind randomized clinical trial.

BACKGROUND: Chlorhexidine (CHX) is the most effective antiseptic mouthwash to date. Essential oil such as thymol, have inhibitory and biocidal effects a range of bacteria. OBJECTIVE: To determine the effect of mouthwash containing CHX and thymol on plaque induced gingivitis. METHODS: This double-blind randomized clinical trial study was performed on 60 patients with plaque induced gingivitis who were randomly divided into two groups: Group I (CHX/thymol mouthwash-Vi-one) and Group II (CHX mouthwash-Behsa). Patients in each group underwent scaling and root planning and polishing, then were educated about BASS-Method brushing, and were recommended Oral-B toothbrushes and Pooneh toothpaste. The two groups were asked to rinse their mouths for 60 seconds twice a day, once in the morning and once at night, after brushing their teeth. Plaque index, gingival index, bleeding index and stain index were evaluated at baseline and 14 days later in Ramfjord teeth. Data analysis was conducted using SPSS version 21. Independent-samples t-test and paired-samples t-test were used for data analysis. RESULTS: The results showed that plaque index and gingival index significantly reduced in two groups (p<0.001). However, group I was significantly more efficient than group II (p<0.001, p=0.021 respectively). Similar results were observed in terms of bleeding index with the difference that the two groups did not differ significantly from each other (p=0.879). Both groups significantly increased the stain index. No remarkable difference was also observed between the two groups (p=0.754). CONCLUSION: Based on the results of this study, we can conclude that the CHX/thymol mouthwash can be offered to patients with dental plaque-induced gingivitis, because it appears to be more effective in controlling dental plaque and gingivitis. TRIAL REGISTRATION: The trial was registered at the Iranian Registry of Clinical Trials (http://www.irct.ir) with the Irct ID: IRCT201602231760N45. FUNDING: This study was part of a thesis and research project (Grant No: 9440921) supported and funded by Babol University of Medical Sciences. The authors received no financial support from Behsa pharmaceutical company (Behsa mouthwash manufacturer) or Rojin cosmetic laboratory (Vi-one mouthwash manufacturer) for this study.

Histological and histomorphometric evaluation of the synthetic biomaterial Natix® in horizontal reconstruction of alveolar ridge.

BACKGROUND: Following loss of teeth, atrophy of alveolar ridge of the jaws is a substantial problem and unintended outcome that compels clinicians to perform bone reconstruction ahead of implant placement. Although autogenous bone is recommended as the gold standard in bone reconstruction, aninvasive second surgery harvestinga limited volume of bone (from intraoral source) has led a significant approachingthe use of synthetic bone substitute materials. The aim of this study was to evaluate the histologic and histomorphometric properties of porous titanium granules (Natix®) used in horizontal reconstruction of alveolar ridge before implant placement. MATERIALS AND METHODS: In the present quasi-experimental clinical trial, four patients (three females and one male) needed horizontal bone augmentation on ten areas of edentulous mandibular ridge before implant treatment. During surgery, the buccal aspect of edentulous ridge was augmented by Natix®, covered by resorbable membrane (Cytoplast®). After 8 months, 10 core biopsies were obtained. RESULTS: In histological study, no foreign body reaction at the site of the newly formed bone or around the biomaterial residue was observed. Newly formed bone was fully vital with large lacunae containing osteocytes. In 60% of cases, connective tissue was observed at the biomaterial - new bone interface. In histomorphometric study, mean percentage of bone formation was 40.56% ± 19.83% and mean bone trabecular thickness was 39.98 ± 17.54 µ. CONCLUSION: Despite acceptable histological and histomorphometric bone formation findings, in clinical terms, no increase was created in the horizontal dimension. Thus, it seems that application of this biomaterial in horizontal reconstruction of alveolar ridges with noncontained defects is inappropriate.

A histologic, histomorphometric, and radiographic comparison between two complexes of CenoBoen/CenoMembrane and Bio-Oss/Bio-Gide in lateral ridge augmentation: A clinical trial.

BACKGROUND: Several grafting materials have been used for alveolar ridge augmentation. The literature lacks researches to compare CenoBone to other grafting materials. The aim of this study was to compare CenoBone/CenoMembrane complex to Bio-Oss/Bio-Gide complex in lateral alveolar bone augmentation in terms of radiographic, histologic, and histomorphometric parameters. MATERIALS AND METHODS: In this randomized controlled trial, ten patients who needed lateral ridge augmentation were selected and augmentations were done using either of CenoBone/CenoMembrane or Bio-Oss/Bio-Gide complexes. In the re-entry surgery in 6 months following augmentation, core biopsies were taken and clinical, radiographic, histologic, and histomorphometric evaluations were performed. RESULTS: No statistically significant difference was seen between groups except for the number of blood vessels and percentage of residual graft materials. CONCLUSION: CenoBone seems to present a comparable lateral ridge augmentation to Bio-Oss in.

Histologic and histomorphometric evaluation of two grafting materials Cenobone and ITB-MBA in open sinus lift surgery.

AIMS AND OBJECTIVES: Alveolar ridge reduction caused after tooth extraction can be minimized through ridge preservation and application of graft materials. The aim of this study was to compare the histologic and histomorphometric aspects of bone particulated allografts, Cenobone and ITB-MBA, in the reconstruction of vertical alveolar ridge after maxillary sinus augmentation. MATERIALS AND METHODS: This clinical trial was performed among 20 patients. The participants were randomly divided into two groups of 10 participants. The first group received Cenobone and the second group received ITB-MBA. Tissue samples were prepared 6 months later at the time of implant installation and after successful maxillary sinus floor augmentation. Tissue sections were examined under a light microscope. The data were analyzed by Chi-square and t-test. RESULTS: The mean trabecular thickness of the samples in the Cenobone group was 13.61 ± 7.47 µm compared to 13.73 ± 7.37 µm in the ITB-MBA group (P = 0.93). A mild inflammation process (Grade 1) was detected in both the groups. The amount of remaining biomaterial in the Cenobone group was estimated to be 8 ± 19% vs. 7 ± 12% in the ITB-MBA group (P = 0.30). Bone formation was reported 49.71% in the Cenobone group vs. 40.76% in the ITB-MBA group (P = 0.68). The mean newly formed vessel in the Cenobone group was 0.64 ± 0.7 vs. 1.5 ± 2.3 in the ITB-MBA group (P = 0.14). CONCLUSIONS: There was no significant difference between the two groups of patients regarding trabecular thickness, remaining biomaterial allograft, and the density of blood vessels after sinus floor elevation; hence, there was no difference between the two groups regarding implant outcome. More designed studies as randomized controlled trials and controlled clinical trials, which evaluate the long-term implant outcome; comparing the different bone graft materials is also required to improve evidence on survival and success rate.

Evaluation of hemodynamic and SpO2 variability during different stages of periodontal surgery.

BACKGROUND: Changes in pulse rate and blood pressure are common consequences during oral surgeries. Hypoxia during surgical process is another side effect. The objective of the present study was evaluation of blood hemoglobin oxygenation and hemodynamic changes during periodontal surgery. MATERIALS AND METHODS: This clinical trial study was conducted upon 50 subjects aged 30-55 years who referred to the clinic of dental faculty of Babol University and needed periodontal surgery with modified widman flaps in the anterior section of the maxilla. Pulse rate, blood pressure, and pulse oximetric evaluations were recorded in five stages during surgery. RESULTS: The average of systolic and diastolic blood pressure had been in their maximum amount in the second stage of evaluation and minimum amounts were in the first one; while pulse rate changes were greatest in the second stage and lowest in the fifth stage. Analyzing the data revealed no significant difference in Blood Oxygen Saturation (SpO2) measurements in none of the stages evaluated. CONCLUSIONS: Blood pressure and heart rate increased significantly after the injection of anesthetic drug and in further phases they were decreased after the elimination of stimulating effect of adrenaline. SpO2 changes were not significantly prominent.

A periodontal health assessment of hospitalized patients with myocardial infarction.

BACKGROUND: Recent researches have known long term infections such as periodontal disease to be related with the process of atherosclerosis. Periodontitis causes peripheral inflammation and immune cell stimulation which leads to an increase in C - reactive protein (CRP) and IgA Ab and there is a definite relation between cardiovascular disease, CRP increase and Periodontitis. The aim of this study was to evaluate the periodontal health status of patients with myocardial infarction who were hospitalized in Babol and Sari Hospitals. METHODS: This descriptive study was done on 95 men and women age ranging from 40 to 70 years old hospitalized due to myocardial infarction diagnosis in Babol and Sari Hospitals. Periodontal health, of patients evaluated via Cowell Bleeding Index, Green and vermillion Debri Index, Tooth Mobility, Clinical attachment Level on Ramfjord teeth. Data were analyzed with SPSS and Kruskal-Wallis test and Mann-whitney test. RESULTS: Considered indexes were evaluated in 81men and 14 women studied which showed no significant difference among them in the average BI (p=0.52), average tooth mobility (p=0.117) and average CAL index (p=0.745). The only significant difference between men and women was found in average DI index (p=0.08). There was a significant difference between average CAL in Ramfjord teeth of upper and lower jaw (p=0.002). CONCLUSION: According to high prevalence of periodontitis in our study, periodontitis may be a risk factor of cardiovascular disease, it should be pointed out that here is the cardiologists' emphasis on their patients referring to the dentists.

Salvadora Persica extract chewing gum and gingival health: improvement of gingival and probe-bleeding index.

Previous studies showed that Persica extracts have antibacterial activity against cariogenic and periodontopathic bacteria and can develop periodontal health; however, the clinical effects of gum as a delivery device for Persica to periodontal health in human, have not yet been investigated. The objective of this study was to evaluate the effect of chewing gum containing Persica extract on periodontal health in a double-masked, randomized trial. From a high school in Babol, 72 cases with plaque induced moderate gingivitis were randomly assigned to the 2 weeks trial in the following groups: S+/P+ (n = 18): use of Persica extract chewing gum for 2 weeks and two sessions of scaling; S+/P- (n = 18): use of placebo chewing gum two sessions of scaling; S-/P+ (n = 18): use of Persica extract chewing gum; and S-/P- (n = 18): use of placebo chewing gum. Plaque index (PI), gingival index (GI), and bleeding index (BI), were measured at days 0, 7, and 14. Data was analyzed with t test or Mann-Whitney U test. Seven patients from Persica scaling group and five patients from Persica no scaling (S-/P+) group were excluded for complaining about the taste and irritation. The effects of extract chewing gum was statistically significant in reduction of GI, and BI but not for PI in Persica groups compared with the placebo groups in the days of 7 and 14 after the beginning of trial. Persica extract chewing gum had a considerable effect on GI, and BI. The use of Salvadora persica extract chewing gum may promote periodontal health.