The association between oral inflammatory load and semen and sperm functional analysis: A cross-sectional study.

Background: Studies have suggested a correlation between periodontitis and reduced male fertility. Inflammation has been described as the link between these ailments. Oral inflammatory load (OIL) can be measured through oral polymorphonuclear neutrophil (oPMN) count, which is associated with periodontal diseases. This cross-sectional study assessed the possible correlation between OIL and the functional parameters of sperm cells. Methods: In 229 volunteers, oral rinse and semen samples were assessed for oPMN, semen polymorphonuclears (sPMNs), sperm concentration, total sperm count, motility, morphology, and sperm DNA fragmentation index (SDFi). A multiple linear regression model was conducted to evaluate the relationships between oPMN and semen parameters. Results: The effect of elevated oPMN counts on total motility rate, progressive rate, and percentage of sperm cells with normal morphology was significant (P<0.001), with an inverse relationship, i.e., with every unit increase in oPMN count, the mentioned parameters would decline by 0.573, 0.367, and 0.407 units, respectively. oPMN counts also correlated positively with sPMN counts and SDFi (P<0.001), i.e., with every unit increase in the oPMN measures, sPMN counts would increase by 0.126 million/mL, with an 0.733% increase in SDFi. However, there was no significant association between oPMN counts and sperm concentration. Conclusion: OIL, as represented by oPMN counts, might affect male fertility as there is a positive correlation between the levels of these inflammatory cells and decreased sperm motility, abnormal morphological changes, increased sPMN counts, and increased SDFi.

Effect of photodynamic therapy as an adjunctive to mechanical debridement on the nonsurgical treatment of peri-implant mucositis: A randomized controlled clinical trial.

Background: The use of photodynamic therapy (PDT) has been evaluated as an adjunctive technique for bacterial decontamination of implants with peri-implantitis. Given the controversies over the efficacy of the application of PDT to treat peri-implant diseases, the present clinical study aimed to evaluate the posttherapeutic clinical parameters and cytokine levels in peri-implant crevicular fluid in patients with peri-implant mucosal inflammation, receiving mechanical debridement (MD) alone or in association with PDT. Materials and Methods: In this double-blinded randomized clinical trial, 52 patients with peri-implant mucosal inflammation were selected and they were randomly assigned to 2 treatment groups: a MD group and an MD + PDT group using an 805 nm laser and indocyanine green (ICG). Although the decrease in bleeding on probing was the primary outcome, pocket depth, PUS, pain on probing, clinical attachment level, gingival recession, tumor necrosis factor-α, interleukin (IL)-1ß, IL-6 and matrix metalloproteinase-8 were also evaluated at baseline, 2-week, and 3-month postintervention. Repeated measure analysis of variance was used to analyze inter-group differences and a P ≤ 0.05 was considered for significant differences between tested parameters. Results: Statistically significant improvements (P < 0.001) were detected for all variables after comparison of baseline data with those collected at each time interval of the study. Nevertheless, the inter-group comparisons of these variables between the baseline, 2-week, and 3-month intervals did not reveal any significant decrease in sites treated with either MD alone or MD + PDT. Conclusion: The application of PDT using 805-nm laser and ICG as an adjunct therapy to MD did not provide any additional improvements in the clinical or biologic parameters of peri-implant mucosal inflammation.

Comparison of the effects of Diplen LX membrane and Coe-Pak on pain, wound healing, and patient preference after the periodontal flap surgery in patients with moderate to severe chronic periodontitis.

Background. After periodontal surgery, in most cases, the surgical area is covered with a surgical pack. It has been suggested that these packs might minimize complications. This study aimed to compare the effects of Diplen LX membrane and Coe-Pak on pain, wound healing, and patient preference after a periodontal flap surgery in patients with moderate to severe chronic periodontitis. Methods. In this randomized clinical trial, 26 patients were evaluated. Pain scores were assessed using visual analog scale (VAS) on the 3rd and 7th days postoperatively and compared between the two dressings. On the 7th and 14th days after both flap surgeries, surgical site healing was evaluated using the wound healing index (WHI). Results. The mean age of the patients was 31. It was observed that the severity of pain in the studied patients on the 3rd and 7th days postoperatively was significantly lower in the intervention group than in the control group. It was also observed that the value of WHI in the studied patients on the 7th and 14th days postoperatively was significantly higher in the intervention group than in the control group. Conclusion. The pain was less severe in both groups using periodontal dressing and also lower in the Diplen LX membrane group. In addition, based on WHI, wound healing score in patients was also higher and more favorable in the Diplex LX membrane group. Due to the above factors, the majority of patients preferred the use of the Diplen LX membrane.

Evaluation of antibacterial effect of concentrated growth factor on Aggregatibacter actinomycetemcomitans and Porphyromonas gingivalis.

Introduction: Aggregatibacter actinomycetemcomitans and Porphyromonas gingivalis are the two main bacteria that cause periodontitis which is an inflammatory disease of periodontal tissues. Numerous antibacterial agents have been introduced to fight against these periodontal pathogens, but the antibacterial efficacy of concentrated growth factor has not been studied yet. Therefore, this study is aimed to investigate the antibacterial impact of concentrated growth factor on the growth of Aggregatibacter actinomycetemcomitans and Porphyromonas gingivalis. Methods: In this study, concentrated growth factor was obtained from blood samples of healthy people with no systemic disease and no antibiotics used for at least 3 months before the experiments. The concentrated growth factor from each blood sample was divided into two parts, i.e., three samples in P. gingivalis group and three samples in A. actinomycetemcomitans group, and a positive control group to verify the accuracy of the procedure and a negative group to rule out any contamination. The minimum inhibitory concentration and minimum bactericidal concentration of CGF against A. actinomycetemcomitans and P. gingivalis were determined by the broth microdilution method. Statistical analysis was performed using SPSS 22 software, and P value significance was set to 0.05. Results: The antibacterial property of CGF on the studied bacteria in concentrations of MIC and » MIC is the same for both bacteria, but in ½ MIC, its impact on A. actinomycetemcomitans is significantly higher than P. gingivalis. Examining the MBC showed that no MBC dose was obtained. Results of the disk diffusion test indicated the lack of the zones of bacterial growth inhibition. Conclusions: Considering the limitations of our study, it can be concluded that CGF has antibacterial effectiveness against A. actinomycetemcomitans and P. gingivalis with no significant difference between two bacteria.

Effect of conscious sedation use on anxiety reduction, and patient and surgeon satisfaction in dental implant surgeries: A systematic review and meta-analysis.

Demand for dental implants has increased in recent years and the use of conscious sedation for this type of surgery can be of great benefit. Therefore, the aim of this systematic review was to evaluate the scientific literature related to the effect of conscious sedation on the reduction of anxiety, and patient and surgeon satisfaction. The Embase, PubMed, ProQuest, Scopus, Ovid, and Cochrane databases were searched without limitations. According to the inclusion and exclusion criteria determined for the study, 10 articles were selected for the final review during several screening stages. These studies were reviewed in their full-text form by the research team and the intended data was extracted. The risk of bias was assessed for each of the selected articles. Five studies were ultimately included. Two of the them compared local anesthesia and conscious sedation, while another 2 compared the consequences of different types of conscious sedation. The anxiety reduction and patient and surgeon satisfaction data was collated. Midazolam was the most frequently used agent. After a thorough review of the final articles extracted based on the study protocol, it was concluded that the use of conscious sedation during implant surgery reduces patient anxiety, and also increases the satisfaction of the patient and surgeon.

Intravenous sedation in dental implant surgeries: A systematic review of hemodynamic effects.

Background: The main objective of thissystematic review wasto identify the hemodynamic effects of intravenous sedatives used in dental implant surgeries. Methods: Embase, PubMed, ProQuest, Scopus, Ovid, and Cochrane databases were searched with no limitations. Of 59 studies obtained, 50 studies were excluded due to incompatibility with the subject. The remaining studies were reviewed in full text and assessed for the risk of bias individually. The included studies were reviewed by the research team, and the necessary data were extracted. Results: Four studies were finally included. Two of the studies compared local anesthesia and intravenous sedation, while the other two compared the consequences of different types of intravenous sedation. By comparing the hemodynamic effects, the systolic and diastolic blood pressure and the heart rate data were collated. Midazolam was the most frequently used intravenous sedative, and Dexmedetomidine affected hemodynamics the most. Conclusion: Intravenous sedation leads to decreased heart rate and blood pressure. Better hemodynamic outcomes improve the patients' cooperation by decreasing stress and anxiety. Dexmedetomidine seems to be the first choice for intravenous sedation.

Corrigendum to "Comparative Study on the Efficacy of Anorganic Bovine Bone (Bio-Oss) and Nanocrystalline Hydroxyapatite (Ostim) in Maxillary Sinus Floor Augmentation".

[This corrects the article DOI: 10.1155/2014/967091.].

Effects of enamel matrix derivative on non-surgical management of peri-implant mucositis: a double-blind randomized clinical trial.

BACKGROUND: Peri-implant diseases have been recognized as being among the ever-increasing complications related to dental implants. The aim of this study was to evaluate the adjunctive use of enamel matrix derivative (EMD) to mechanical debridement (MD) in patients with these conditions in terms of clinical parameters and cytokine levels of peri-implant crevicular fluid (PICF). METHODS: In the present double-blind clinical trial, 46 patients with peri-implant mucositis (PM) were randomly divided into control and test groups. Two different therapeutic protocols, consisting of non-surgical MD alone (control group) and MD with the application of EMD (test group), were considered for the two groups. Clinical parameters [bleeding on probing (BOP) and probing depth (PD)] and sampling from PICF were carried out before treatment and 3 months postoperatively. The levels of IL-6 and IL-17 cytokines in PICF were evaluated by enzyme-linked immunosorbent (ELISA). RESULTS: Three-month post-interventional assay revealed significant improvements in BOP and PD in the test group in comparison to the control group (P < 0.0001). Relative to control, IL-6 and IL-17 levels were reduced significantly (p < 0.05) in the test group compared to the control group. CONCLUSION: Application of EMD can be considered an adjunct to MD in the non-surgical treatment of PM. However, complete recovery was not observed using either treatment approach showing that management of implant-associated disease is still a significant clinical problem.

Corrigendum: Microbiological and clinical effects of enamel matrix derivative and sustained-release micro-spherical minocycline application as an adjunct to non-surgical therapy in peri-implant mucosal inflammation.

[This corrects the article on p. 181 in vol. 41, PMID: 26339576.].

Microbiological and clinical effects of enamel matrix derivative and sustained-release micro-spherical minocycline application as an adjunct to non-surgical therapy in peri-implant mucosal inflammation.

OBJECTIVES: The purpose of this study was to compare the microbial and clinical effects of mechanical debridement (MD) alone or in combination with the application of enamel matrix derivative (EMD) and sustained-release micro-spherical minocycline (MSM) for treatment of peri-implant mucosal infl ammation (PIMI). MATERIALS AND METHODS: Subjects with at least one implant with PIMI were included and divided into control and two different test groups. In all three groups, MD was performed. In the MSM group, following MD, MSM was placed subgingivally around the implants. In the EMD group, after MD, EMD was placed in the sulcus around the implants. Sampling of peri-implant crevicular fl uid for microbial analysis with real-time polymerase chain reaction and recording of probing depth (PD) and bleeding on probing (BOP) were performed prior to as well as two weeks and three months after treatment. Median values and interquartile range were estimated for each variable during the various assessment intervals of the study. RESULTS: In all groups, at two weeks and three months, the counts of Porphyromonas gingivalis decreased significantly compared to baseline. Levels of P. gingivalis were significantly reduced in MSM (P<0.001) and EMD (P=0.026) groups compared to the control group. Also, clinical parameters improved significantly at two weeks and three months. Reduction of PD was significant in MSM (P<0.001) and EMD (P<0.001) groups. The decrease in BOP in the MSM, EMD, and control groups was 60%, 50%, and 20%, respectively. CONCLUSION: The use of MSM and EMD can be an adjunctive treatment for management of PIMI and improves clinical parameters and reduces P. gingivalis burden three months after treatment.

Clinical and Microbiological Effects of Photodynamic Therapy Associated with Non-surgical Treatment in Aggressive Periodontitis.

Background and aims. The aim of this study was to compare the effectiveness of adjunctive photodynamic therapy (PDT) in the treatment of aggressive periodontitis. Materials and methods. A total of 24 patients with clinical diagnosis of aggressive periodontitis received scaling and root planing (SRP) for periodontal treatment. In a split-mouth design study, the teeth of one quadrant of each arch with ≥4 mm of probing depth were selected randomly for additional treatment with PDT (test group). PDT was performed with a diode laser beam with a wavelength of 670-690 nm and a power of 75 Mw. The control group consisted of selected teeth of the contralateral quadrant (SRP only). Before any treatment, subgingival plaque samples were collected by an endodontic paper cone for microbiological analysis by real-time polymerase chain reaction (PCR) for detection of Aggregatibacter actinomycetecommitans. Clinical parameters including clinical attachment loss (CAL) as primary outcome, plaque index (PI), bleeding on probing (BOP), probing depth (PD) and gingival recession (REC) were measured at baseline and after 90 days. Inter-group and intra-group statistical analyses were performed. Results. Treatment groups showed an improvement in all the clinical parameters and a significant reduction in the counts of A. actinomycetecommitans at 90 days compared to baseline (P < 0.05). None of the periodontal parameters exhibited significant differences between the two groups (P > 0.05). Conclusion. Within the limitations of this study, the results did not show additional benefits from PDT as an adjunctive treatment for patients with aggressive periodontitis.

Effects of photodynamic therapy on clinical and gingival crevicular fluid inflammatory biomarkers in chronic periodontitis: a split-mouth randomized clinical trial.

BACKGROUND: There are limited clinical experiments addressing the effects of photodynamic therapy (PDT) as an adjunct to conventional scaling and root planing (SRP) on clinical and biologic features of periodontitis. This trial compares the clinical parameters and cytokine profiles in gingival crevicular fluid of patients with moderate-to-severe chronic periodontitis (CP) who have been treated using SRP alone or SRP + PDT. METHODS: Twenty-two patients with two contralateral teeth affected with moderate-to-severe CP were selected. After SRP, the participants' teeth were randomized to receive either no further treatment or a single application of PDT using a 638-nm laser and toluidine blue. Although the change in probing depth was the primary outcome, bleeding on probing, clinical attachment level, gingival recession, interleukin-1ß, tumor necrosis factor (TNF)-α, and matrix metalloproteinase 8 and 9 were also evaluated at baseline and 3 months postintervention. An oral rinse assay was also performed to determine the total levels of oral polymorphonuclear cells (PMNs) before and 3 months after the treatments. RESULTS: Within each group, significant improvements (P <0.001) were found for all variables in 3-month follow-up compared with baseline. Only TNF-α was significantly improved in the PDT + SRP versus SRP group. Total levels of PMNs were reduced for all patients compared with baseline levels (P <0.001). CONCLUSION: In patients with CP, a single application of PDT (using a 638-nm laser and toluidine blue) did not provide any additional benefit to SRP in terms of clinical parameters or inflammatory markers 3 months following the intervention.

Comparative Study on the Efficacy of Anorganic Bovine Bone (Bio-Oss) and Nanocrystalline Hydroxyapatite (Ostim) in Maxillary Sinus Floor Augmentation.

Purpose. The aim of this study was to evaluate the efficacy of anorganic bovine bone (Bio-Oss) in comparison with nanocrystalline hydroxyapatite (Ostim) in sinus floor augmentation. Methods. Ten patients aged 40-80 were selected. All the patients needed sinus floor augmentation due to insufficient bone for simultaneous implant placement. The patients underwent panoramic radiography and cone beam computed tomography (CBCT) prior to surgical procedure. After lifting the sinus membrane, Bio-Oss and Ostim are randomly grafted at one of the two sides. Biopsies were obtained from areas identified 5 months after the surgery and before implant placement and then were prepared for histological analysis. Statistical analysis was performed with nonparametric Wilcoxon signed-rank test for comparison of histological and radiological parameters between the two groups. Results. Histological findings revealed a significant increase in percentages of new bone in the Ostim group (P = 0.015). Furthermore, new bone density was greater with Ostim compared to Bio-Oss (P = 0.038); however, the difference in height increase after surgery did not reach statistical significance (P = 0.191). Conclusion. Despite the limitations of this trial, Ostim and Bio-Oss are useful biomaterials in sinus augmentation and Ostim seems to be even more effective in new bone formation.

Efficacy of Subgingival Application of Xanthan-based Chlorhexidine Gel Adjunctive to Full-mouth Root Planing Assessed by Real-time PCR: A Microbiologic and Clinical Study.

BACKGROUND AND AIMS: The aim of this clinical investigation was to compare clinical and microbiological effectiveness of adjunctive CHX gel in the treatment of periodontitis. MATERIALS AND METHODS: Twenty-four subjects with localized or generalized moderate-to-severe chronic periodontitis underwent scaling and root planing. One tooth in each quadrant with a probing depth of >4 mm was chosen for combined gel and SRP, with contralateral tooth as control (SRP treated site). Clinical assessment was carried out at baseline and 1 and 3 months later; microbial assessment was performed by real-time PCR. Periodontal probing depth (PPD) was considered as primary outcome. RESULTS: Twenty patients completed the study. Baseline PPDs were 4.90±0.78 and 5.05±0.79 in the SRP and gel groups, respectively (P>0.05), which decreased to 3.67±0.59 and 3.7±0.83 one month after treatment and 3.25±0.65 and 3.38±0.79 three months after treatment. Although values decreased significantly in both groups after one and three months (P=0.001 in the SRP and P=0.001 in the gel group), the inter-group difference was not significant neither at one-month (P=0.47) nor at three-month (P=0.77) intervals. The only clinical parameters exhibiting statistically significant inter-group differences was BOP in both one-month (P=0.004) and three-month (P=0.0001) intervals. All the other clinical measurements showed significant decreases after one and three months in both sites but without inter-group differences. CONCLUSION: Subgingival application of xanthan chlorhexidine gel combined with scaling and root planing reduced bleed-ing of periodontal pockets. Clinical trials to evaluate effectiveness of this gel in aggressive and severe periodontitis modified by systemic factors are suggested.

Dental and oral diseases in Medieval Persia, lessons from Hedayat Akhawayni.

Persian physicians had a great role in assimilation and expansion of medical sciences during the medieval period and Islamic golden age. In fact the dominant medical figures of that period were of Persian origin such as Avicenna and Razes, but their works have been written in Arabic that was the lingua franca of the period. Undoubtedly the most substantial medical book of that period that has been written in Persian belongs to Abubakr Rabi ibn Ahmad al-Akhawayni al-Bokhari and his book, Hidayat al-Mutallimin fi-al-Tibb (Learner's Guide to Medicine).There are two chapters related to oral and dental diseases in the Hidayat, a chapter on dental pain and a chapter on bouccal pain. Akhawayni's views on dental diseases and treatments are mainly based on anatomical principles and less influenced by humeral theory and no mention about the charms, magic and amulets. False idea of dental worm cannot be seen among his writings. Cutting of the dental nerve for relieving the pain, using the anesthetizing fume, using the natural antiseptic and keeping the tooth extraction as the last recourse deserves high praise.

Effect of two prophylaxis methods on adherence of Streptococcus mutans tomicrofilled composite resin and giomer surfaces

Objectives: Surface attributes of a restoration play an important role in adherence of plaque bacteria. Prophylaxismethods may be involved in modification of or damaging the restoration surface. The aim of the present studywas to evaluate the effect of two prophylaxis methods on adherence of Streptococcus mutans to the surface of tworestorative materials. Study design: A total of 60 specimens were prepared from each material; a microfilled compositeresin (HelioProgress) and a giomer (Beautifil II). For each material, the specimens were randomly dividedinto three groups (n=20). Group 1: no prophylaxis treatment (control); Group 2: prophylaxis with pumice andrubber cup; Group 3: prophylaxis with air-powder polishing device (APD). The surfaces of selected specimensfrom each group were evaluated under a scanning electron microscope (SEM), and the surface topography formedby the two prophylaxis methods was determined by atomic force microscopy (AFM). Adherence of Streptococcusmutans to the surface of specimens was determined by the plate counting method following immersion in abacterial innoculum for 4 hours, rinsing and sonication. Data were analyzed by two-way ANOVA and post hocTukey test for multiple comparisons. Statistical significance was set at P<0.05. Results: Bacterial adherence wassignificantly affected by both factors: restorative material type and prophylaxis method (P<0.0005). Mean bacterialadhesion was significantly higher in composite groups compared to corresponding giomer groups. Withineach material, bacterial adherence was significantly lower in the control group compared to prophylaxis groups.Prophylaxis with pumice and rubber cup resulted in a significantly lower bacterial adherence compared to (..) (AU)

A clinical comparison of nano-crystalline hydroxyapatite (Ostim)and autogenous bone graft in the treatment of periodontal intrabony defects

Objectives: The aim of the present study was to evaluate the efficacy of autogenous bone graft (ABG) and nanocrystallinehydroxyapatite (Ostim) in the management of human intrabony periodontal defects.Study Design: Twenty-four similar two and three wall intrabony periodontal defects with ≥5 mm probing depthsand ≥3 mm depths of intrabony component in 12 healthy patients were selected. One defect in each subject wastreated with ABG (ABG group) and the contralateral one with ABG and Ostim (Ostim group). Plaque index (GI),gingival index (PI), clinical probing depth (CPD), clinical attachment level (CAL), gingival margin level, bonefill, crestal resorption and defect resolution were measured at baseline and during reentry surgery after 6 months.Wilcoxon signed-rank test and Mann–Whitney U test were used to analyze the data.Results: Groups showed statistically significant improvements in soft and hard tissue parameters after 6 monthsexcept in gingival margin level and crestal level. However, the between-group differences after 6 months were notstatistically significant with regard to soft and hard tissue measurements.Conclusion: Within the limits of this study, both treatments resulted in marked clinical improvement, and Ostimtreatment seemed to be effective in the treatment of two&three-wall intrabony defects as well as autogenous bonegraft (AU)

No disponible

A causative link between periodontal disease and glomerulonephritis: a preliminary study.

BACKGROUND: Periodontal disease has been associated with a number of systemic diseases. A high prevalence of periodontitis among individuals with chronic kidney diseases and end-stage renal disease has been reported. However, no association between periodontal diseases and glomerulonephritis has previously been investigated. OBJECTIVE: The aim of this study was to assess the severity and possible role of periodontitis in a group of patients with unknown primary glomerulonephritis. METHODS: Ten patients with unknown primary glomerulonephritis, and who had a renal biopsy with stable renal function and serum creatinine <1.6 mg/dL, were recruited. Severity of the periodontal disease was clinically measured with plaque index (PI), gingival index (GI), and periodontal pocket depth (PD). The subjects received appropriate dental treatments where indicated. The patients were also put on angiotensin-converting enzyme inhibitor or angiotensin receptor blockers for controlling blood pressure and proteinuria. Six months following appropriate periodontal treatment, renal function, degree of proteinuria, and level of C-reactive protein (CRP) were measured in each individual. RESULTS: The median age of the patients was 30 (15.8) years. The median urine protein excretion was lower following the periodontal therapy (P=008). Prior to the dental and/or periodontal therapies, the median PI, PD, and GI were 57.5%, 4.3, and 1.1, respectively. The majority of the patients had advanced periodontal disease. In four patients, +2/+3 CRP turned negative after periodontal treatment. CONCLUSIONS: The present study revealed that a causative link might exist between periodontal disease and glomerulonephritis.

A clinical comparison of nano-crystalline hydroxyapatite (Ostim) and autogenous bone graft in the treatment of periodontal intrabony defects.

OBJECTIVES: The aim of the present study was to evaluate the efficacy of autogenous bone graft (ABG) and nano-crystalline hydroxyapatite (Ostim) in the management of human intrabony periodontal defects. STUDY DESIGN: Twenty-four similar two and three wall intrabony periodontal defects with ≥5 mm probing depths and ≥3 mm depths of intrabony component in 12 healthy patients were selected. One defect in each subject was treated with ABG (ABG group) and the contralateral one with ABG and Ostim (Ostim group). Plaque index (GI), gingival index (PI), clinical probing depth (CPD), clinical attachment level (CAL), gingival margin level, bone fill, crestal resorption and defect resolution were measured at baseline and during reentry surgery after 6 months. Wilcoxon signed-rank test and Mann-Whitney U test were used to analyze the data. RESULTS: Groups showed statistically significant improvements in soft and hard tissue parameters after 6 months except in gingival margin level and crestal level. However, the between-group differences after 6 months were not statistically significant with regard to soft and hard tissue measurements. CONCLUSION: Within the limits of this study, both treatments resulted in marked clinical improvement, and Ostim treatment seemed to be effective in the treatment of two & three-wall intrabony defects as well as autogenous bone graft.