Penetration of Silver Diamine Fluoride in Deep Carious Lesions of Human Permanent Teeth: An In Vitro Study

Background. When silver diamine fluoride (SDF) is used in conjunction with conservative caries removal in deep carious lesions, the distribution depth of silver is critical for safety and effectiveness. Objective. The purpose of this study is to determine the effect of selected caries removal on silver penetration when 38% SDF is applied to deep carious lesions in permanent teeth. Methods. Extracted permanent teeth with caries extending to the inner third of the dentin were used (N = 18). The periphery of the carious lesion was completely removed to the dentinoenamel junction (DEJ). In group A (n = 9), no further removal of carious tissue was performed, leaving necrotic dentin inner to the DEJ, whereas in group B (n = 9) superficial necrotic dentin was completely removed until leathery, slightly moist, reasonably soft dentin remained. SDF was applied for 3 minutes in both groups. Microcomputer tomography (micro-CT) and field emission scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (FESEM-EDS) were used to measure mineral density and silver distribution. The silver penetration depth/lesion depth (PD/LD) ratio was calculated for each sample. The Mann–Whitney U test was used to compare differences between the two groups. Results. The micro-CT analysis showed that the PD/LD ratios of group B (1.07–2.29) were marginally greater than those of group A (1.00–1.31). However, a statistically significant difference was not observed ( p value = 0.5078). When stratified by remaining dentin thickness (RDT), the PD/LD ratios of group B were still greater than those of group A only when RDT was >500 µm. The FESEM-EDS analysis indicated that silver particles precipitated throughout the entire thickness of the carious lesions. Conclusion. Applying SDF on a deep carious lesion and leaving the necrotic dentin pulpally did not affect silver penetration. However, the extent to which silver penetrates the remaining dentin beneath the lesions is dependent on the amount and characteristics of that dentin.

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Tissue Engineering of Necrotic Dental Pulp of Immature Teeth with Apical Periodontitis in Dogs: Radiographic and Histological Evaluation

Journal of Clinical Pediatric Dentistry ◽

10.17796/1053-4625-42.5.9 ◽

2018 ◽

Vol 42 (5) ◽

pp. 373-382 ◽

Cited By ~ 7

Author(s):

Eman A El Ashiry ◽

Najlaa M Alamoudi ◽

Mahmoud K El Ashiry ◽

Hagar A Bastawy ◽

Douaa A El Derwi ◽

...

Keyword(s):

Tissue Engineering ◽

Stem Cells ◽

Growth Factors ◽

Dental Pulp ◽

Dental Pulp Stem Cells ◽

Apical Periodontitis ◽

Permanent Teeth ◽

Significant Difference ◽

Group A ◽

Group B

Aim: To evaluate tissue engineering technology to regenerate pulp-dentin like tissues in pulp canals of immature necrotic permanent teeth with apical periodontitis in dogs. Study design: The study was performed on 36 teeth in 12 dogs. The experiment was carried out using split mouth design. In each dog 3 teeth were selected for implementing the study procedure. Apical periodontitis was induced in Group A and B teeth. Group (A): immature upper left 2nd permanent incisors that were transplanted with a construct of autologous dental pulp stem cells with growth factors seeded in a chitosn hydrogel scaffold. Group (B): immature upper right 2nd permanent incisor that received only growth factors with scaffold. A third tooth in each dog was selected randomly for isolation of dental pulp stem cells (DPSCs). Both groups were closed with a double coronal seal of white MTA (Mineral trioxide aggregate) and glass ionomer cement. Both groups were monitored radiographically for 4 months and histologically after sacrificing the animals. Results: There was no statistically significant difference in radiographic findings between group (A) and group (B) for healing of radiolucencies, while there was statistically significant difference between group (A) and group (B) regarding radicular thickening, root lengthening and apical closure. Histologically, group (A) teeth showed regeneration of pulp- dentin like tissue while group (B) teeth did not show any tissue regeneration. Conclusion: Dental pulp stem cells and growth factors incorporated in chitosan hydrogel are able to regenerate pulp- dentine like tissue and help in complete root maturation of non-vital immature permanent teeth with apical periodontitis in dogs.

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Characteristics of the Deep Carious Lesions of Primary and Permanent Molars Using IOPA Radiographs

European Journal of Dental and Oral Health ◽

10.24018/ejdent.2021.2.5.84 ◽

2021 ◽

Vol 2 (5) ◽

pp. 1-3

Author(s):

C. Nagarathna ◽

C. Rahul ◽

T. Umapathy

Keyword(s):

Radiographic Evaluation ◽

Primary Molars ◽

X Rays ◽

Carious Lesion ◽

Loss Of Function ◽

Carious Lesions ◽

Significant Difference ◽

Deep Carious Lesions ◽

Permanent Molars ◽

Deep Carious Lesion

Aim: To determine the site and pattern of deep carious lesion & its consequences on coronal and radicular structures radiographically in primary molars & first permanent molars using IOPA radiographs. Materials and methods: It consisted of 200 IOPA of Deep carious of Maxillary & mandibular of primary (n=100) and permanent molars(n=100) X-rays are collected. IOPA radiographs of Deep carious lesion involving only dentin with radiolucency reaching the inner 1/3 of dentin, clinically cavitated that is RC5 Of the ICMMS criteria were taken. Blinded Radiographic evaluation was done by two persons to rule out inter examiner variability. Results: In primary molars IOPA there was statistically significant difference in Carious adjacent tooth whereas in permanent molars IOPA there was statistical difference in Diffused pattern and lost tooth structures. When compared primary and permanent molars diffused pattern and lost tooth structure showed statistically significant difference. Conclusion: The deep carious lesions definitely lead to loss of crown structure over a period of time and also capable of spread of caries to adjacent teeth due to food impaction & inadequate oral hygiene. Hence leading to loss of function and arch length.

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In-vitro Assessment of Silver Diamine Fluoride Effect on Natural Carious Dentin Microhardness

Frontiers in Dental Medicine ◽

10.3389/fdmed.2021.811308 ◽

2021 ◽

Vol 2 ◽

Author(s):

Meghna Prakash ◽

Yoon H. Kang ◽

Shruti Jain ◽

Andrea Ferreira Zandona

Keyword(s):

Rank Order ◽

Oral Care ◽

Significant Negative Correlation ◽

Tactile Sensation ◽

Control Group ◽

Silver Diamine Fluoride ◽

Significant Difference ◽

Group A ◽

Group B

This study aimed to assess the effect of silver diamine fluoride (SDF) on natural carious dentin microhardness and the correlation between tactile sensation, fluorescence, and microhardness on carious dentin. Permanent carious teeth scored ICDAS 4–6 were longitudinally sectioned into tooth slabs exposing carious dentin on one side and sound dentin on the other. Both sides were assessed for tactile sensation (soft/leathery/firm), fluorescence (red/pink/no fluorescence) with FACE technology (SiroInspect®, Dentsply Sirona, USA), and Vickers's microhardness (VMH). Samples were randomized into 3 groups based on SDF protocol (n = 30): Control/Group A- No SDF treatment; Group B- 38% SDF (Advantage Arrest™, Elevate Oral Care®, USA); Group C- SDF with potassium iodide/KI (Riva Star, SDI, Australia). After SDF application, all samples were stored for 1 week under 100% humidity at 37°C and re-assessed for tactile sensation, fluorescence, and microhardness. Change in microhardness (ΔVMH; mean ± SD), tactile sensation (ΔT), and fluorescence (ΔF) were calculated using the difference between pre-SDF and post-SDF values. Mixed ANOVA analysis showed that ΔVMH of carious and sound surfaces were statistically significantly higher for each of the experimental groups (Group B-sound: 20.22 ± 11.98 HV, carious: 19.76 ± 9.35 HV; Group C-sound: 14.26 ± 10.11 HV, carious: 22.51 ± 7.67 HV) than the control group (Group A–sound: 7.34 ± 8.28 HV, carious: 0.69 ± 3.53 HV) (p < 0.0001). There was no statistically significant difference between the experimental groups themselves for carious surfaces (p = 0.146). On sound surfaces, Group B showed a statistically significantly higher ΔVMH than Group C (p = 0.026). There was no statistically significant interaction between type of surface and ΔVMH in Group B (p = 0.809). In Group C, sound surfaces showed a statistically significantly lower ΔVMH than carious surfaces (p < 0.0001). Spearman rank-order correlation showed a statistically significant negative correlation between ΔVMH and ΔT (rs = −0.588, p < 0.0001) and between ΔVMH and ΔF (rs = −0.269, p = 0.01). There was a statistically significant positive correlation between ΔT and ΔF (rs = 0.226, p = 0.032). In conclusion, the microhardness of SDF-treated dentin surfaces increased as compared to non-SDF-treated surfaces. SDF (Advantage Arrest™) increased microhardness of carious and sound dentin to a similar extent whereas, SDF/KI (Riva Star) increased microhardness of carious dentin more than sound dentin. An increase in microhardness was correlated with a firmer tactile sensation.

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DeVega versus ring annuloplasty in severe functional tricuspid insufficiency and their impact on the right ventricle

The Egyptian Cardiothoracic Surgeon ◽

10.35810/ects.v1i4.89 ◽

2019 ◽

Vol 1 (4) ◽

pp. 133-139

Author(s):

Yasser Hamdy ◽

Mohammed Mahmoud Mostafa ◽

Ahmed Elminshawy

Keyword(s):

Right Ventricular ◽

Tricuspid Valve ◽

Tricuspid Regurgitation ◽

Early Postoperative Period ◽

Tricuspid Valve Repair ◽

Ring Annuloplasty ◽

Significant Difference ◽

Group A ◽

Group B ◽

The Right

Background: Functional tricuspid valve regurgitation secondary to left-sided valve disease is common. DeVega repair is simple, but residual regurgitation with subsequent impairment of the right ventricular function is a concern. This study aims to compare tricuspid valve repair using DeVega vs. ring annuloplasty and their impact on the right ventricle in the early postoperative period and after six months. Methods: This is a prospective cohort study of 51 patients with rheumatic heart disease who underwent tricuspid valve repair for secondary severe tricuspid regurgitation. Patients were divided into two groups: group A; DeVega repair (n=34) and group B; ring annuloplasty repair (n=17). Patients were assessed clinically and by echocardiography before discharge and after six months for the degree of tricuspid regurgitation, right ventricular diameter and tricuspid annular plane systolic excursion (TAPSE). Results: Preoperative echocardiographic assessment showed no difference in left ventricular end-systolic diameter, end-diastolic diameter, ejection fraction and right ventricular diameter, however; group A had significantly better preoperative right ventricular function measured by TAPSE (1.96 ± 0.27 vs1.75 ± 0.31 cm; p=0.02). Group B had significantly longer cardiopulmonary bypass time (127.65 ± 13.56 vs. 111.74 ± 18.74 minutes; p= 0.003) and ischemic time (99.06 ± 11.80 vs. 87.15 ± 16.01 minutes; p= 0.009). Pre-discharge, there was no statistically significant difference in the degree of tricuspid regurgitation, but the right ventricular diameter was significantly lower in group B (2.66 ± 0.41 and 2.40 ± 0.48 cm; p=0.049). After six months of follow up, the degree of tricuspid regurgitation (p= 0.029) and the right ventricular diameter were significantly lower in the ring annuloplasty group (2.56 ± 0.39 and 2.29 ± 0.44 cm; p=0.029). Although there was a statistically significant difference in preoperative TAPSE, this difference disappeared after six months. Conclusion: Both DeVega and ring annuloplasty techniques were effective in the early postoperative period, ring annuloplasty was associated with lesser residual regurgitation and better right ventricular remodeling in severe functional tricuspid regurgitation than DeVega procedure after 6-months of follow up.

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Effect of short-term use of oral contraceptive pills on intraocular pressure

Pakistan Journal of Ophthalmology ◽

10.36351/pjo.v35i3.871 ◽

2020 ◽

Vol 35 (3) ◽

Author(s):

Tayyaba Gul Malik ◽

Hina Nadeem ◽

Eiman Ayesha ◽

Rabail Alam

Keyword(s):

Oral Contraceptive ◽

Childbearing Age ◽

Short Term ◽

Oral Contraceptive Pills ◽

Contraceptive Pills ◽

Time Period ◽

Significant Difference ◽

Group A ◽

Group B ◽

Short Time

Objective: To study the effect of short-term use of oral contraceptive pills on intra-ocular pressures of women of childbearing age. Methods: It was a comparative observational study, conducted at Arif memorial teaching hospital and Allied hospital Faisalabad for a period of six months. Hundred female subjects were divided into two groups of 50 each. Group A, included females, who had been taking oral contraceptive pills (OCP) for more than 6 months and less than 36 months. Group B, included 50 age-matched controls, who had never used OCP. Ophthalmic and systemic history was taken. Careful Slit lamp examination was performed and intraocular pressures (IOP) were measured using Goldman Applanation tonometer. Fundus examination was done to rule out any posterior segment disease. After collection of data, we analyzed and compared the intra ocular pressures between the two groups by using ANOVA in SPSS version 21. Results: Average duration of using OCP was 14.9 months. There was no significant difference of Cup to Disc ratios between the two groups (p= 0.109). However, significant difference was noted between the IOP of OCP group and controls. (p=0.000). Conclusion: OCP significantly increase IOP even when used for short time period.

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Comparative Clinical study of Jatyadi Taila and Jatyadi Ghrita in the management of Dushta Vrana

Journal of Ayurveda and Integrated Medical Sciences (JAIMS) ◽

10.21760/jaims.v3i3.12875 ◽

2018 ◽

Vol 3 (3) ◽

Author(s):

Rajendra Joshi ◽

N. B. Mashetti ◽

Rakesh Kumar Gujar

Keyword(s):

Clinical Study ◽

Burning Sensation ◽

Normal Process ◽

Surgical Practice ◽

Local Factors ◽

Significant Difference ◽

Comparative Clinical Study ◽

Group A ◽

Contaminated Wound ◽

Group B

Dushta Vrana is a common and frequently encountered problem faced in surgical practice. The presence of Dushta Vrana worsens the condition of the patient with different complications and may become fatal. Local factors on wound like slough, infection and foreign body, affect the normal process of healing. A healthy wound in a normal body heals earlier with a minimum scar as compared to a contaminated wound. Therefore in this study all the efforts are made to make a Dushta Vrana into a Shuddha Vrana. Once the Vrana becomes Shuddha, Ropana of the Vrana will start. The objective of the study was to evaluate the clinical efficacy of Jatyadi Taila and Jatyadi Ghrita in Dushta Vrana. Clinically diagnosed 60 Patients of Dushta Vrana were randomly divided into two groups, each consisting of 30 Patients. Group A were treated with the Jatyadi Taila and Group B was treated by Jatyadi Ghrita. The results observed was based on the relief obtained on the subjective and objective parameters taken for consideration for this study viz, size of ulcer, discharge, smell, pain, burning sensation, itching and granulation were found significant (P Lass Than 0.05). On the basis of assessment criteria and overall result of treatment, the patients of Jatyadi Taila group showed better results when compared to Jatyadi Ghrita group. Even though statistically there is no much significant difference between the two groups, but by seeing the effect on individual parameters (subjective and objective) and over all response, Jatyadi Taila seems to be effective when compared to Jatyadi Ghrita. It is having more Ropana qualities when compared to Shodhana.

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Clinical effect of Suvarna Bindu Prashan

Journal of Ayurveda and Integrated Medical Sciences (JAIMS) ◽

10.21760/jaims.v2i3.8203 ◽

2017 ◽

Vol 2 (3) ◽

Cited By ~ 1

Author(s):

Patil Aniket ◽

Dindore Pallavi ◽

Arbar Aziz ◽

Kadam Avinash ◽

Saroch Vikas

Keyword(s):

Physical Health ◽

Eating Habits ◽

Control Group ◽

Inform Consent ◽

Significant Difference ◽

Group A ◽

Group B ◽

Immune Booster ◽

Mental And Physical Health ◽

Apparently Healthy

The quest for excellence in mental and physical health is not new. We find various references and formulations in Ayurvedic classics meant for promoting mental and physical health of a child. Suvarna Prashan is one of the formulations explained in age old Ayurvedic classic Kashyap Samhita. This formulation is very widely used now days as a memory and immune booster for children. But there is very little systematic documented study which can be used to evaluate the efficacy of the formulation. Suvarna Bhasma was prepared in Ayurved Rasayani Pharmacy, Pune. Madhu and Ghrita were collected from KLE Ayurveda Pharmacy, Belgaum. Suvarna Bindu Prashan was prepared in KLE Ayurved pharmacy, Belgaum. It contains Suvarna Bhasma, Ghrita and Madhu. Twenty apparently healthy male and female children with age group of three to four years were ready to sign inform consent form were selected into two groups each. Subjects in Group A received Suvarna Bindu Prashan where as Group B (Control group) did not receive any treatment. Both the groups were observed for six months. Children in Suvarna Bindu Prashan group showed significant reduction in the scores of eating habits, behavior, mood, temperament and scores of event of illness. However there was no significant difference in the score of sleeping habit. There was significant increase in IQ percentage.

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Microsurgical unilateral laminotomy for bilateral decompression of degenerative lumbar canal stenosis: a comparative study

The Egyptian Journal of Neurology Psychiatry and Neurosurgery ◽

10.1186/s41983-019-0125-4 ◽

2019 ◽

Vol 55 (1) ◽

Author(s):

Mohamed I. Refaat ◽

Amr K. Elsamman ◽

Adham Rabea ◽

Mohamed I. A. Hewaidy

Keyword(s):

Patient Satisfaction ◽

Blood Loss ◽

Minimally Invasive ◽

Invasive Technique ◽

Decompression Surgery ◽

Microsurgical Decompression ◽

Significant Difference ◽

Duration Of Surgery ◽

Group A ◽

Group B

Abstract Background The quest for better patient outcomes is driving to the development of minimally invasive spine surgical techniques. There are several evidences on the use of microsurgical decompression surgery for degenerative lumbar spine stenosis; however, few of these studies compared their outcomes with the traditional laminectomy technique. Objectives The aim of our study was to compare outcomes following microsurgical decompression via unilateral laminotomy for bilateral decompression (ULBD) of the spinal canal to the standard open laminectomy for cases with lumbar spinal stenosis. Subjects and methods Cases were divided in two groups. Group (A) cases were operated by conventional full laminectomy; Group (B) cases were operated by (ULBD) technique. Results from both groups were compared regarding duration of surgery, blood loss, perioperative complication, and postoperative outcome and patient satisfaction. Results There was no statistically significant difference between both groups regarding the improvement of visual pain analogue, while improvement of neurogenic claudication outcome score was significant in group (B) than group (A). Seventy-three percent of group (A) cases and 80% of group (B) stated that surgery met their expectations and were satisfied from the outcome. Conclusion Comparing ULBD with traditional laminectomy showed the efficacy of the minimally invasive technique in obtaining good surgical outcome and patient satisfaction. There was no statistically significant difference between both groups regarding the occurrence of complications The ULBD technique was found to respect the posterior spinal integrity and musculature, accompanied with less blood loss, shorter hospital stays, and shorter recovery periods than the open laminectomy technique.

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The Role of Obesity in Predicting the Clinical Outcomes of COVID-19

Obesity Facts ◽

10.1159/000517180 ◽

2021 ◽

pp. 1-9

Author(s):

Serdar Sahin ◽

Havva Sezer ◽

Ebru Cicek ◽

Yeliz Yagız Ozogul ◽

Murat Yildirim ◽

...

Keyword(s):

Clinical Outcomes ◽

Health Care Providers ◽

Study Groups ◽

Normal Weight ◽

Overweight And Obesity ◽

Care Providers ◽

Significant Difference ◽

Group A ◽

Group B ◽

Group D

Introduction: The aim of this was to describe the predictors of mortality related to COVID-19 infection and to evaluate the association between overweight, obesity, and clinical outcomes of COVID-19. Methods: We included the patients >18 years of age, with at least one positive SARS-CoV-2 reverse transcriptase-polymerase chain reaction. Patients were grouped according to body mass index values as normal weight <25 kg/m2 (Group A), overweight from 25 to <30 kg/m2 (Group B), Class I obesity 30 to <35 kg/m2 (Group C), and ≥35 kg/m2 (Group D). Mortality, clinical outcomes, laboratory parameters, and comorbidities were compared among 4 groups. Results: There was no significant difference among study groups in terms of mortality. Noninvasive mechanical ventilation requirement was higher in group B and D than group A, while it was higher in Group D than Group C (Group B vs. Group A [p = 0.017], Group D vs. Group A [p = 0.001], and Group D vs. Group C [p = 0.016]). Lung involvement was less common in Group A, and presence of hypoxia was more common in Group D (Group B vs. Group A [p = 0.025], Group D vs. Group A [p < 0.001], Group D vs. Group B [p = 0.006], and Group D vs. Group C [p = 0.014]). The hospitalization rate was lower in Group A than in the other groups; in addition, patients in Group D have the highest rate of hospitalization (Group B vs. Group A [p < 0.001], Group C vs. Group A [p < 0.001], Group D vs. Group A [p < 0.001], Group D vs. Group B [p < 0.001], and Group D vs. Group C [p = 0.010]). Conclusion: COVID-19 patients with overweight and obesity presented with more severe clinical findings. Health-care providers should take into account that people living with overweight and obesity are at higher risk for COVID-19 and its complications.

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Comparison of functional and oncological outcomes of innovative “three-port” and traditional “four-port” laparoscopic radical prostatectomy in patients with prostate cancer

BMC Urology ◽

10.1186/s12894-021-00787-7 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Ben Xu ◽

Si-da Cheng ◽

Yi-ji Peng ◽

Qian Zhang

Keyword(s):

Prostate Cancer ◽

Radical Prostatectomy ◽

Biochemical Recurrence ◽

Laparoscopic Radical Prostatectomy ◽

Positive Surgical Margin ◽

Oncological Outcomes ◽

Estimated Blood Loss ◽

Significant Difference ◽

Group A ◽

Group B

Abstract Background To compare the functional and oncological outcomes between innovative “three-port” and traditional “four-port” laparoscopic radical prostatectomy (LRP) in patients with prostate cancer (PCa). Methods We retrospectively collected the data of PCa patients treated at our institutions from June 2012 to May 2016. According to the inclusion criteria, a total of 234 patients were included in the study, including 112 in group A (four-port) and 122 in group B (three-port). The perioperatively surgical characteristics, functional and oncological outcomes were compared between groups. Results There were no statistical differences in the baseline parameters between these two groups. Compared with group A, the operative time (OT) and estimated blood loss (EBL) were significantly less in group B. On follow-up, the rate of positive surgical margin (PSM), prostate specific antigen (PSA) biochemical recurrence and continence after LRP did not show any statistically significant difference between the groups. An identical conclusion was also received in comparison of overall survival (OS) and biochemical recurrence-free survival (BRFS) between both groups. Conclusions Innovative “three-port” LRP can significantly shorten the OT and reduce the EBL compared with the traditional “four-port” LRP. Meanwhile, it does not increase the rate of PSM and PSA biochemical recurrence. “Three-port” LRP could be popularized in the future in view of its superior surgical technique, considerably better functional outcomes and remarkable oncological control.

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