Evaluation of oral stereognosis in completely edentulous patients with palatal tori.

Background: The corollary is not investigated in the completely edentulous patients with palatal tori. Objective: The aim of this study was to assess the oral stereognostic ability in completely edentulous patients with palatal tori. Material and Methods: Thirty-four completely edentulous patients aged 50 to 89 years were allocated to Group 1 (without palatal tori, n=18) and Group 2 (with palatal tori, n=16). The oral stereognostic test was conducted using 6 intraoral test pieces (circle/square/rectangle/triangle/plus/toroid) that were fabricated to standard dimensions using the light cure acrylic resin. Each test piece was placed in the patient’s mouth and was asked to manipulate the test piece between the tongue and the palate. The patients identified the shapes by matching them on a shape chart. Each correct identification was assigned a score of 1. The response time taken to identify each shape was recorded. Statistical computation was done using a chi - square test and Mann-Whitney U test. Results: Significant difference was observed in the overall scoring percentages between the 2 groups (p<0.05). Group 2 had lower oral stereognostic scores compared to group 1 (p<0.05). There was no statistically significant difference in the mean response time for identifying the shapes among the groups, however group 2 patients had longer response time. Conclusion: Oral stereognostic ability of the completely edentulous patients with torus palatinus was lower when compared to completely edentulous patients without tori.

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Expression of Sigma-Class Glutathione-S-Transferase in Fetal and Pediatric Filum Terminale Samples: A Comparative Study

Medicina ◽

10.3390/medicina55050133 ◽

2019 ◽

Vol 55 (5) ◽

pp. 133

Author(s):

Cahit Kural ◽

Serpil Oguztuzun ◽

Gülçin Güler Şimşek ◽

Servet Guresci ◽

Pınar Kaygın ◽

...

Keyword(s):

Tethered Cord ◽

Filum Terminale ◽

Glutathione S Transferase ◽

Chi Square ◽

Significant Difference ◽

Chi Square Test ◽

Normal Human ◽

Group 2 ◽

The Relationship ◽

Group 1

Background and objectives: The pathophysiology of tethered cord syndrome (TCS) in children is not well elucidated. An inelastic filum terminale (FT) is the main factor underlying the stretching of the spinal cord in TCS. Our study aimed to investigate the expression of glutathione-S-transferase (GST) in children and fetal FT samples in order to understand the relationship between this enzyme expression and the development of TCS. Materials and Methods: FT samples were obtained from ten children with TCS (Group 1) and histological and immunohistochemical examinations were performed. For comparison, FT samples from fifteen normal human fetuses (Group 2) were also analyzed using the same techniques. Statistical comparison was made using a Chi-square test. Results: Positive GST-sigma expression was detected in eight (80%) of 10 samples in Group 1. The positive GST-sigma expression was less frequent in nine (60%) of 15 samples from Group 2. No statistically significant difference was detected between the two groups (p = 0.197). Conclusions: Decreased FT elasticity in TCS may be associated with increased GST expression in FT. More prospective studies are needed to clarify the mechanism of the GST–TCS relationship in children.

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In vitro assessment of natural extract as irrigant on root dentin microhardness

International Journal of Research in Pharmaceutical Sciences ◽

10.26452/ijrps.v11i3.2683 ◽

2020 ◽

Vol 11 (3) ◽

pp. 4542-4545

Author(s):

Sneha Mali ◽

Abhijeet Phase ◽

Nootan Mali

Keyword(s):

Normal Saline ◽

Hardness Test ◽

Acrylic Resin ◽

Natural Extract ◽

Extract Solution ◽

Significant Difference ◽

Group 3 ◽

Group 2 ◽

Group 1

To determine the effect of a natural extract of of 2.5% concentration on the of root canal when used as an irrigating solution. This was an in comparative study where and twenty intact single-rooted teeth were selected and with a diamond bur to get an apical-coronal length of 10 mm and were randomly separated into three groups as per the used; Group 1 (control): Irrigation with Normal saline, Group 2: Irrigation with Smear Clear solution, Group 3: Irrigation with 2.5% extract solution. were prepared using Pro Taper Universal Rotary Files with intermittent irrigation with the respective irrigating solution. The teeth were then embedded in acrylic resin and subjected to Vicker's Hardness test, and the data obtained were analyzed using one way ANOVA. When Group 2(51.80±9.80 VHN and 52.66±5.28 VHN) was compared with Group 3(44.98±4.34 VHN and VHN) the values showed a statistically significant difference (p< 0.05).When Group 3 (44.98±4.34 VHN and VHN) was compared with Group 1(65.37±8.80 VHN and 67.74±9.56 VHN), the values did show a statistically significant difference (p> 0.05). Within the limitations of this study, teeth irrigated with normal saline showed the least reduction in followed by irrigation with leaf extract solution and Smear Clear.

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Surgical management of consecutive exotropia: Long-term outcomes

European Journal of Ophthalmology ◽

10.1177/1120672120983199 ◽

2021 ◽

pp. 112067212098319

Author(s):

Osman Melih Ceylan ◽

Yeşim Gedik Oğuz ◽

Önder Ayyıldız ◽

Serkan Köksal ◽

Erhan Yumuşak ◽

...

Keyword(s):

Early Postoperative Period ◽

Dose Effect ◽

Average Dose ◽

Success Rates ◽

Chi Square ◽

Significant Difference ◽

Consecutive Exotropia ◽

Group 2 ◽

Group 1

Purpose: To compare lateral rectus recession (LRc) and medial rectus advancement (MRadv) for correction of consecutive exotropia (CXT). Methods: Of the 43 exotropic patients 20 of them underwent LRc (group 1) and 23 of them underwent MRadv (group 2). Postoperative exodrift, strabismic angle, dose effect relationship were compared with minimum 2 years follow‑up. Results: An average dose-effect in group 2 is higher than group 1 in the early postoperative period, however there was no significant difference at the second year follow-up (p=0,109). An average exodrift after 2 year follow-up was 6,6±7,12 PD in group 1, and 8,13±7,45 PD in group 2. Postoperative overall success rate was 50% in group 1 and 65% in group 2 at the last follow-up. The success rates were not significantly different between the groups (chi-square, p =0.31). Conclusion: Although there was no statistically significant difference at the last follow-up, better results were obtained with MRadv than LRc in the treatment of CXT.

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Influence of Location of the Gingival Margin on the Microleakage and Internal Voids of Nanocomposites

The Journal of Contemporary Dental Practice ◽

10.5005/jcdp-9-7-65 ◽

2008 ◽

Vol 9 (7) ◽

pp. 65-72 ◽

Cited By ~ 12

Author(s):

Emre Ozel ◽

Yonca Korkmaz ◽

Nuray Attar

Keyword(s):

Bonferroni Correction ◽

Chi Square ◽

Gingival Margin ◽

Group 4 ◽

Significant Difference ◽

Chi Square Test ◽

Group 3 ◽

Group 2 ◽

Group 1

Abstract Aim The aim of this in vitro study was to investigate the cervical microleakage and internal voids of nanocomposites comparing them with a hybrid composite in Class II restorations with the margins located coronal and apical to the cementoenamel junction (CEJ). Methods and Materials Standardized MOD cavities (one cervical margin located in dentin, one in enamel) were prepared in 40 extracted human molars and divided into four groups according to the composite used to restore them (n=10/group). Group 1: Adper Single Bond2/Filtek Supreme XT; Group 2: Excite/Tetric EvoCeram; Group 3: Prime & BondNT/Ceram X; and Group 4 (control) Adper Single Bond2/Filtek Z250. Groups were further divided into subgroups A and B. The “A” subgroups represent the level of the location of the cervial margin at 1 mm coronal to the CEJ, and the “B” subgroups represent the level of the cervical margin located 1 mm apical to the CEJ. After restoration of the cavities with nanocomposites, thermocycling, and immersion in 0.5% basic fuchsin, the dye penetration and internal voids were evaluated under a stereomicroscope. Data were analyzed with the Mann-Whitney U and Kruskal-Wallis tests with the Bonferroni correction for microleakage and with the Chi-square test for internal voids (p<0.05). Results The microleakage in the A subgroups was statistically significantly lower then B subgroups (p<0.05). No statistically significant difference was observed in terms of interface, cervical, and occlusal voids for all groups (p>0.05). No significant difference was observed between each group for three voids in all groups (p>0.05). Conclusion The location of the gingival margin affects the microleakage of nanocomposites but has no significant affect on the internal voids. Clinical Significance Gingival margin located 1 mm coronal to the CEJ provided a reduction in cervical microleakage in nanocomposite restorations. Citation Ozel E, Korkmaz Y, Attar N. Influence of Location of the Gingival Margin on the Microleakage and Internal Voids of Nanocomposites. J Contemp Dent Pract 2008 November; (9)7:065-072.

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Comparison of the Accuracy of Fixture-Level Implant Impression Making with Different Splinting Techniques

International Journal of Dentistry ◽

10.1155/2021/2959055 ◽

2021 ◽

Vol 2021 ◽

pp. 1-9

Author(s):

Mehrdad Nateghi ◽

Ramin Negahdari ◽

Sahar Molaei ◽

Ali Barzegar ◽

Sepideh Bohlouli

Keyword(s):

Setting Time ◽

Acrylic Resin ◽

Study Groups ◽

Significant Difference ◽

Group 3 ◽

The Mean ◽

Group 2 ◽

Main Model ◽

Group 1

Objectives. The impression-taking technique is one of the most critical factors that not only prevents the shrinkage caused by polymerization but also enhances the accuracy of implant impressions. Also, choosing the right time of taking impressions after splinting implants is one of the important criteria that affects the impression-taking technique. Accordingly, the present study aimed to evaluate the accuracy of different splint methods for implant impressions made at different times. Methods. In this in vitro study, a two-piece metallic index was prepared, and the patient’s jaw was simulated by placing self-cured acrylic resin in the lower part of the index. Then, two holes were made in the acrylic resin at a specific distance from each other, and the analogs were placed in these holes. Splinting of impression copings was carried out with autopolymerized acrylic resin (GC Pattern resin LS, GC America Inc., USA), and an open tray impression approach was performed. Thirty-six casts in three groups (n = 12) were fabricated from the acrylic model. After scanning the casts, the impression accuracy was compared between the three study groups by measuring the distance between the outer portions of the scan bodies screw-retained on implant analogs inside the cast using the Exocad software (2015.07 version). Group 1: splinting impression copings with autopolymerized acrylic resin and impression making immediately after the setting time (4 minutes); group 2: splinting and impression procedure after 17 minutes with splint sectioning and reconnection; group 3: splinting and impression procedure after 24 hours with splint sectioning and reconnection. The data were analyzed using SPSS 17 using the Kruskal–Wallis test. Results. The mean distance measured in group 1 was 19.14 ± 0.029 mm, which was significantly lower than the main model. The distances were 19.15 ± 0.039 and 19.159 ± 0.33 mm in groups 2 and 3, respectively. These two groups were not significantly different from the main model. Moreover, the mean distance measured in the three impression techniques was similar. Conclusions. There was no significant difference in the measurements between group 2, group 3, and the main model. Therefore, dentists can make an impression after 17 minutes to reduce chair time.

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Probiotic Supplements do not Increase the Effectiveness of Antibiotics in the Treatment of Bacterial Vaginosis

Indonesian Journal of Obstetrics and Gynecology ◽

10.32771/inajog.v1i4.365 ◽

2016 ◽

Author(s):

Ratnah Hamid

Keyword(s):

Bacterial Vaginosis ◽

Standard Therapy ◽

Obstet Gynecol ◽

Teaching Hospitals ◽

Probiotic Supplementation ◽

Chi Square ◽

Significant Difference ◽

Chi Square Test ◽

Group 2 ◽

Group 1

Objective : This study aims to assess the effect of the addition of probiotic supplement to the standard therapy on the recovery of Bacterial vaginosis infection. Methods: The research was conducted by taking samples from Obstetrics and Gynecology Department in several teaching hospitals of Faculty of Medicine, Hasanuddin University. This study was an experimental study. Consecutive sampling was conducted on 50 samples, which were then divided into two groups. Group 1 received Metronidazol therapy 2 times a day for 7 days, while group 2 received Metronidazol therapy 2 times a day supplemented with oral Probiotic of once a day for 7 days. The data were analysed by using the chi-square test. Results: There is no significant difference in the recovery of bacterial vaginosis infection between the group that received the probiotic supplementation and the group that did not. Conclusion: The addition of probiotic supplement to the standard therapy of BV infection does not show any signifcant effect. [Indones J Obstet Gynecol 2013; 1-4: 194-8] Keyword: bacterial vaginosis, probiotic supplement, recovery, standard therapy

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In-vivo evaluation of the effect of cyanoacrylate on prosthetic vascular graft infection – does cyanoacrylate increase the severity of infection?

VASA ◽

10.1024/0301-1526/a000867 ◽

2020 ◽

Vol 49 (4) ◽

pp. 281-284

Author(s):

Atıf Yolgosteren ◽

Gencehan Kumtepe ◽

Melda Payaslioglu ◽

Cuneyt Ozakin

Keyword(s):

Vascular Graft ◽

Graft Infection ◽

Vascular Graft Infection ◽

Group 4 ◽

Significant Difference ◽

Group 3 ◽

Group 2 ◽

Prosthetic Vascular Graft Infection ◽

Group 1

Summary. Background: Prosthetic vascular graft infection (PVGI) is a complication with high mortality. Cyanoacrylate (CA) is an adhesive which has been used in a number of surgical procedures. In this in-vivo study, we aimed to evaluate the relationship between PVGI and CA. Materials and methods: Thirty-two rats were equally divided into four groups. Pouch was formed on back of rats until deep fascia. In group 1, vascular graft with polyethyleneterephthalate (PET) was placed into pouch. In group 2, MRSA strain with a density of 1 ml 0.5 MacFarland was injected into pouch. In group 3, 1 cm 2 vascular graft with PET piece was placed into pouch and MRSA strain with a density of 1 ml 0.5 MacFarland was injected. In group 4, 1 cm 2 vascular graft with PET piece impregnated with N-butyl cyanoacrylate-based adhesive was placed and MRSA strain with a density of 1 ml 0.5 MacFarland was injected. All rats were scarified in 96th hour, culture samples were taken where intervention was performed and were evaluated microbiologically. Bacteria reproducing in each group were numerically evaluated based on colony-forming unit (CFU/ml) and compared by taking their average. Results: MRSA reproduction of 0 CFU/ml in group 1, of 1410 CFU/ml in group 2, of 180 200 CFU/ml in group 3 and of 625 300 CFU/ml in group 4 was present. A statistically significant difference was present between group 1 and group 4 (p < 0.01), between group 2 and group 4 (p < 0.01), between group 3 and group 4 (p < 0.05). In terms of reproduction, no statistically significant difference was found in group 1, group 2, group 3 in themselves. Conclusions: We observed that the rate of infection increased in the cyanoacyrylate group where cyanoacrylate was used. We think that surgeon should be more careful in using CA in vascular surgery.

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Tuberculosis of the meninges and central nervous system. Experience of clinical diagnostics in St. Petersburg for 50 years

MedAlliance ◽

10.36422/23076348-2020-8-1-14-24 ◽

2020 ◽

Vol 8 (1) ◽

pp. 14-24

Keyword(s):

Central Nervous System ◽

Nervous System ◽

Medical Errors ◽

Clinical Diagnostics ◽

Lethal Outcome ◽

Significant Difference ◽

Group 2 ◽

Allergic Vasculitis ◽

Tuberculosis Meningitis ◽

Group 1

The clinic and diagnostics of tuberculosis meningitis (TM) in 926 patients treated in St. Petersburg hospitals in 1965–1994 (group 1) and in 1995–2018 (group 2) is presented. The TM clinic is demonstrated to be determined by the form of tuberculosis and its characteristic generalization nature in the presence of repeated waves of bacteremia and allergic vasculitis of greater or lesser severity. There is clinical peculiarity of TM in primary pulmonary tuberculosis and its early large-focal and late miliar generalization, as well as in hematogenous tuberculosis. In patients of the 1st and 2nd groups the TM clinic shows in some respects a noticeable similarity, in others — a significant difference. Despite the typical symptoms, early diagnosis of TM took place in less than 20% of patients. Clinical examples illustrating the unusual development of TM, contrasting with its usual course, are given. A number of objective and subjective factors contributing to the adverse evolution of TM and its lethal outcome are discussed. These include the peculiarity of modern tuberculosis, especially when associated with HIV infection, as well as medical errors associated with ignorance of the pathogenesis of tuberculosis and failure to comply with the minimum examination for tuberculosis.

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Two Adhesive Systems-effect on Adhesion to Tooth Structure

Revista de Chimie ◽

10.37358/rc.19.7.7389 ◽

2019 ◽

Vol 70 (7) ◽

pp. 2608-2613

Author(s):

Larisa Simona Deac ◽

Kamel Earar ◽

Adela Loredana Colceriu Burtea ◽

Alexandra Stefania Berghe ◽

Aurora Antoniac ◽

...

Keyword(s):

Adhesive Systems ◽

Hybrid Layer ◽

Tooth Structure ◽

Selective Etch ◽

Etch And Rinse ◽

Significant Difference ◽

Wisdom Teeth ◽

Group 2 ◽

Self Etch ◽

Group 1

This study evaluates and compares by dye penetration method and SEM photomicrographs the sealing obtained using two different classes of adhesive systems (etch-and-rinse and self-etch with selective etching) with SDR (Dentsply) bulk fill composite. 84 class V cavities were prepared on oral and vestibular face of 42 intact, freshly extracted wisdom teeth. The cavities were randomly divided in two groups and restored: Group 1 with prime &bond one select (Dentsply) and SDR (Dentsply) and Group 2 with prime&bond one Etch&Rinse (Dentsply) and SDR (Dentsply). Prime&bond one Select (Dentsply) is a single component adhesive and can be used in self etch mode, in selective enamel etch mode, or in etch-and-rinse mode. We chosen for this study the selective etch of the enamel mode. Prime&bond one Etch Rinse (Dentsply) is a universal etch-and-rinse one-bottle dental adhesive, designed to be used in two steps. The bulk fill composites are commonly used in modern dentistry due to their properties of low polymerization shrinkage and curing in layer of 4 mm depth, offering the practitioner a fast clinical procedure with good results. The results showed a good sealing at enamel and dentin margins with no statistically significant difference between adhesives, even though the mean of enamel infiltration was smaller for Group1. Furthermore the results show that there were differences between the two groups, for the infiltrations at the enamel, the values of microleakage being arithmetically higher for Group 1, but with no statistically difference between the two groups.SEM images showed for both groups a good adhesion surface with the tooth, but the hybrid layer of the total-etch adhesives is different from the hybrid layer formed by self etch adhesives, in terms of thickness, uniformity. In conclusion both adhesive systems have equivalent sealing qualities and can be successfully used with SDR.

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Reducing Gingivitis Remotely using the iGAM mHealth app (part 2): Prospective Observational Study (Preprint)

10.2196/preprints.24955 ◽

2020 ◽

Author(s):

Guy Tobias ◽

Assaf B Spanier

Keyword(s):

Oral Health ◽

Tooth Loss ◽

Prospective Observational Study ◽

Dental Clinics ◽

Significant Difference ◽

Observational Cohort ◽

Group 2 ◽

And Behavior ◽

Oral Hygiene Habits ◽

Group 1

BACKGROUND Gingivitis is a non-painful, inflammatory condition that can be treated with home remedies. Left untreated gingivitis can lead to tooth loss. Periodic dental examinations are important for early diagnosis and treatment of gum diseases. In order to contain the spread of the corona virus, governments, including in Israel, have restricted movements of their citizens which has caused routine dental checkups to be postponed. OBJECTIVE This study aimed to examine the ability of an mHealth app- iGAM to reduce gingivitis. METHODS A prospective observational cohort study was performed, 160 unpaid participants were divided into 2 equal groups and downloaded the iGAM app. Group 1 photographed their gums weekly for eight weeks. Group 2 photographed their gums at the time of recruitment and 8 weeks later. After photo submission, the participants received the message "It is recommended to read the information contained within the app regarding maintaining oral hygiene habits". A single blinded researcher examined the images and scored them according to the Modified Gingival Index (MGI). RESULTS The average age of group 1 was 26.77 (S.D. ± 7.43), and 28.53 (S.D. ± 10.44) for group 2. The majority were male (74.7% in group 1 vs. 66.7% in group 2), most participants described themselves as "secular", most were "single", non-smokers (74.7% vs. 78.4%) and did not take medications (85.3% vs. 78.4%). 126 subjects completed the study. A statistically significant difference (P <.001) was found in the dependent variable (MGI) in a linearly negative manner. As time passed, the gum condition improved, there were significantly lower gingivitis scores in group 1 (M = 1.16, S.D. ± 1.18) compared to group 2 (M = 2.16, S.D. ± 1.49), after eight weeks. Those with more recent dental visits had a lower MGI (p = .037). No association was found between knowledge and behavior, most participants were familiar with the recommendations for maintaining oral health, yet they only performed some. CONCLUSIONS A dental selfie taken once a week using an mHealth app (iGAM) reduced the signs of gingivitis and promoted oral health. During the current pandemic where social distancing recommendations may be causing people to avoid dental clinics, this app can remotely promote gum health. CLINICALTRIAL The protocol was approved by Hadassah research ethics committee (IRB, 0212-18-HMO)

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