scholarly journals Comparison of marginal adaptation of fiber reinforced composite and metal ceramic full veneer crown

2015 ◽  
Vol 5 (1) ◽  
pp. 1-5
Author(s):  
Tareq Hassan ◽  
Sohana Ferdous ◽  
Aslam Md Aurangjeb
Keyword(s):  
Marginal Adaptation ◽  
Fiber Reinforced ◽  
Female Ratio ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Number Of Patients ◽  
Metal Ceramic ◽  
Group A ◽  
The Difference ◽  
Group B

Fiber reinforcement was introduced to clinical dentistry for the first time in the 1960s when investigators attempted to reinforce polymethyl-methacrylate dentures with glass or carbon fibers. It has recently been shown that crowns, bridges and posts made of FRC can be used successfully in dental practice and on the basis of marginal adaptation they are more acceptable than conventional metal ceramic crown. A prospective comparative cross-sectional study was performed involving 60 patients who attended in the out patients department of Prosthodontics, Faculty of Dentistry, BSMMU during the period of January 2007 to December 2008. Clinical data were recorded for the selected 60 patients who were divided into two groups “experimental” and “control”. Marginal adaptation was indexed after California Dental Associations quality evaluation system. The age of the patients ranged from 18 to 42 years in group A and 17 to 38 years in group B. The highest number of patients was in the age group 21-30 years in both the groups. The mean age was 24.9±5.8 years and 25.0±4.8 years in group A and group B respectively. There were 26 male and 34 female patients in the study and male female ratio was 1:1.3. In group A patients, 12(40.0%) were male and 18(60.0%) female. In group B patients 14(46.7%) were male and 16(53.3%) were female. After 4 months all the patients were in grade I in both the groups. After 8 months all the patients were in grade I in group A and 27(90.0%) patients in grade I in group B.  After 12 months all the patients were in grade I in group A and 25(83.3%) patients were in grade I in group B. The difference was not statistically significant (p>0.05) after 8 months, however after 12 months the difference was significant (p<0.05). The Fiber Reinforced Composite crown represents a valuable development in the field of Prosthetic Dentistry. DOI: http://dx.doi.org/10.3329/bjdre.v5i1.22450 Bangladesh Journal of Dental Research and Education Vol.5(1) 2015: 01-05

scholarly journals Comparison of fiber-reinforced composite crowns and metal ceramic crowns according to attrition of opposing teeth

2014 ◽  
Vol 4 (1) ◽  
pp. 21-26
Author(s):  
Tareq Hassan ◽  
AM Aurangjeb
Keyword(s):  
Evaluation System ◽  
Cross Sectional Study ◽  
Fiber Reinforced ◽  
Cross Sectional ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Metal Ceramic ◽  
Group A ◽  
Ceramic Crowns ◽  
Group B

Back ground: Fiber reinforcement was introduced to clinical dentistry for the first time in the 1960s when investigators attempted to reinforce polymethyl- methacrylate dentures with glass or carbon fibers. It has recently been shown that crowns, bridges and posts made of FRC can be used successfully in dental practice and they are esthetically more acceptable than conventional metal ceramic crown. Aims: A prospective comparative cross-sectional study was performed involving 60 patients who attended in the out patients department of Prosthodontics, Faculty of Dentistry, BSMMU during the period of January 2007 to December 2008. Objective: Compare fiber-reinforced composite crowns and metal ceramic crowns according to attrition of opposing teeth. Methods: Clinical data were recorded from the randomly selected 60 patients divided in to tow groups “experimental” and “control”. Attrition of opposing teeth was indexed after California Dental Associations quality evaluation system. Results: In group A patients, 12(40.0%) were male and 18(60.0%) female. In group B patients 14(46.7%) were male and 16(53.3%) were female. All the patients were in grade I in both groups after 4 months. After 8 months all patients were in grade I in group A and 29(96.7%) patients were in grade I in group B. After 12 months all patients were in grade I in group A and 28(93.3%) patients were in grade I in group B. The difference was not statistically significant (p>0.05) in chi square test. Conclusion: The Fiber Reinforced Composite crown represents a valuable development in field of Prosthetic Dentistry. DOI: http://dx.doi.org/10.3329/updcj.v4i1.21161 Update Dent. Coll. j: 2014; 4 (1): 21-26

Comparison of Phenobarbital versus Magnesium Sulphate for Management of Neonate with Birth Asphyxia

2021 ◽  
Vol 15 (8) ◽  
pp. 2145-2147
Author(s):  
Lubna Riaz ◽  
Syed Muhammad Ahmed ◽  
Muhammad Ahmad Zakki ◽  
Neelam Faryad ◽  
Shazia Iram ◽  
...  
Keyword(s):  
Magnesium Sulphate ◽  
Demographic Data ◽  
Birth Asphyxia ◽  
Female Ratio ◽  
Group A ◽  
Insignificant Difference ◽  
The Difference ◽  
Group B ◽  
Breathing Effort ◽  
Male To Female

Background: Poor breathing effort results in decrease oxygen supply to brain and other organs that lead to birth asphyxia. Phenobarbital and magnesium sulphate are both neuroprotective to asphyxia! injury to brain. Objective: To compare the frequency of neonatal mortality with phenobarbital versus magnesium sulphate in the management of birth asphyxia Study Design: Randomized control trial Place and Duration of Study: Pediatrics Department, Sheikh Zayed Hospital, from 8th March 2020 to 8th September 2020. Methodology: One hundred and two neonates were enrolled. After taking informed consent from parents their demographic data was obtained. Then patients were divided in to two groups; group A treated with Phenobarbital and other group B treated with magnesium sulphate. Results: The mean age of group A neonates was 54.37+14.303 days and in group B 48.40+15.20 days with male to female ratio was 0.7:1. Adverse outcome occurred in 12 (11.54%) patients. Statistically insignificant difference (P=0.122) was found between groups. Conclusion: There is more adverse effects outcome with magnesium sulphate than phenobarbital however the difference was statistically insignificant for management of neonates with birth asphyxia. Keywords: Birth asphyxia, Neonates, Magnesium sulphate (MgS04), Phenobarbital

scholarly journals A vivo study on dowel crown with more aesthetic and healthy Fiber Reinforced Composite post system

2012 ◽  
Vol 9 (1) ◽  
pp. 15-18
Author(s):  
Hasibul Hasan ◽  
Kasi Hasinur Rahman ◽  
Shamim Sultana ◽  
Md Mahfuzur Rahman ◽  
Md Shasul Alam
Keyword(s):  
Statistical Significance ◽  
Core Material ◽  
Fiber Reinforced ◽  
Core System ◽  
Promising Alternative ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Significant Difference ◽  
Group B ◽  
Carious Teeth

Statement of problem. Patients having grossly carious teeth with broken down crown are needed to be restored with post & core after endodontic treatment. Root canal posts are widely used & come in a variety of metals & forms. However, cast metal posts, although better than other post & core systems, still possess some disadvantages, like corrosion & discoloration at the gingival margin of the treated tooth & cause aesthetic problem. These problems are overcome with the recently introduced post & core material. The fiber reinforced composite post & core material is a superior & efficient alternative to cast post. Purpose. The purpose of this study was to investigate the success of fiber reinforced composite post & core system over conventional metallic system in regards of corrosion & discoloration resistance with periodontal condition on post treated tooth. Materials & Methods. This was a prospective study, conducted in the department of Conservative Dentistry & Endodontics, B.S.M.M.U. 40 patients were purposively selected who attended in this department with grossly carious teeth with badly broken crown without apical infection as the subject of this study & divided in two groups. 20 patients were included in group A as case subjects & they were treated with fiber reinforced post & core system. 20 patients were included in group B as control subjects. They were treated with conventional cast metallic post & core system. After twelve months, recorded data were compiled on a master chart and statistically analyzed. Chisquare test and t-test (unpaired) were done for statistical significance (P<0.05). Results. Very highly significant difference (p<.001) was observed between the groups in the evaluation of resistance to corrosion & discoloration, there were no significant difference (p>.05) in periodontal evaluation Conclusion. This study revealed that fiber reinforced composite post & core system can overcome the problems faced by the metallic post & core system. So it can be concluded that fiber reinforced composite post & core system can be a promising alternative in comparison to metallic post & core system.DOI: http://dx.doi.org/10.3329/cdcj.v9i1.11832 City Dental College Journal Vol.9(1) 2012 15-18

scholarly journals Two different volume of local anaesthetic in subarachnoid block for Minipercutaneous Nephrolithotomy in prone position

2012 ◽  
Vol 1 (1) ◽  
pp. 10-15
Author(s):  
BR Shrestha ◽  
S Khadgi ◽  
S Shrestha ◽  
P Thapa
Keyword(s):  
Prone Position ◽  
Local Anaesthetic ◽  
Spinal Block ◽  
Sensory Level ◽  
Hyperbaric Bupivacaine ◽  
Subarachnoid Block ◽  
Number Of Patients ◽  
Group A ◽  
The Difference ◽  
Group B

Aims: To see the maximum sensory level in supine and prone position after subarachnoid block in patients undergoing Minipercutaneous Nephrolithotomy with two different volumes of local anaesthetic. Methods: Prospective randomized comparative study in 500 patients undergoing Minipercutaneous Nephrolithotomy for finding out the extensiveness of sensory level spread after spinal anaesthesia using two different volumes of local anaesthetic before and after keeping patients in prone position. Patients were divided into two groups: Group A (three ml hyperbaric Bupivacaine) and Group B (four ml hyperbaric Bupivacaine) consisted of 250 patients each. Spinal block was performed in sitting position. Sensory level and hemodynamic measurements were carried out at different time points while patients were on supine and on prone position. Results: Patients attaining T4 sensory level at five minutes in Group B was significantly higher than in Group A (p=0.001). After 10-15 minutes of spinal block, greater number of patients in Group B reached T4 sensory level while being in supine position than those in Group A and the difference was statistically significant (p=0.000). After keeping the patients in prone position for in 10-15 minutes the number of patients reaching T4 level was found to be significantly higher in group A than in Group B (p=0.063). Decrease in heart rate and blood pressure in prone position were significant from baseline value and while during supine (p<0.05). Conclusion: Prone positioning extends the sensory level of subarachnoid block to higher level (T4) when three ml of hyperbaric solution is used. DOI: http://dx.doi.org/10.3126/jkmc.v1i1.7249 Journal of Kathmandu Medical College, Vol. 1, No. 1, Issue 1, Jul.-Sep., 2012 pp.10-15

scholarly journals In Vitro Assessment of Single-Retainer Tooth-Colored Adhesively Fixed Partial Dentures for Posterior Teeth

2010 ◽  
Vol 2010 ◽  
pp. 1-9
Author(s):  
Tissiana Bortolotto ◽  
Carlo Monaco ◽  
Ioana Onisor ◽  
Ivo Krejci
Keyword(s):  
Fracture Strength ◽  
Composite Resin ◽  
Resin Composite ◽  
Marginal Adaptation ◽  
Fiber Reinforced ◽  
Posterior Teeth ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Custom Made ◽  
Feldspathic Porcelain

The purpose of this paper was to investigate, by means of marginal adaptation and fracture strength, three different types of single retainer posterior fixed partial dentures (FPDs) for the replacement of a missing premolar. Two-unit cantilever FPDs were fabricated from composite resin, feldspathic porcelain, and fiber-reinforced composite resin. After luting procedures and margin polishing, all specimens were subjected to a Scanning Electron Microscopic marginal evaluation both prior to and after thermomechanical loading with a custom made chewing simulator comprising both thermal and mechanical loads. The results indicated that the highest score of marginal adaptation, that is, the closest score to 100% of continuous margins, at thetooth-composite resininterface was attained by the feldspathic porcelain group (88.1% median), followed by the fiber-reinforced composite resin group (78.9% median). The worse results were observed in the composite resin group (58.05% median). Fracture strength was higher in feldspathic porcelain (196N median) when compared to resin composite (114.9 N median). All the fixed prostheses made of fiber-reinforced composite resin detached from the abutment teeth before fracturing, suggesting that the adhesive surface's retainer should be increased.

Glass Fiber Reinforced Composite Resin as an Intracanal Post –A Clinical Study

2008 ◽  
Vol 32 (3) ◽  
pp. 207-210 ◽  
Author(s):  
Priya Subramaniam ◽  
K. Girish Babu ◽  
Raju Sunny
Keyword(s):  
Stainless Steel ◽  
Glass Fiber ◽  
Composite Resin ◽  
Steel Wire ◽  
Stainless Steel Wire ◽  
Marginal Adaptation ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Glass Fiber Reinforced

Restoration of primary incisors, which have been severely damaged by early childhood caries or trauma, is a difficult task for the pediatric dentist. With the introduction of new adhesive systems and restorative materials,alternative approaches for treating these teeth have been proposed. Materials: Ten healthy children aged between 3-4 years who had 28 grossly destructed primary maxillary incisors requiring intra canal retention were selected for the study. Following root canal treatment, either a Glass Fiber Reinforced Composite Resin (GFRCR everStick,, Finland) or an omega shaped stainless steel wire were placed as intracanal posts in these teeth. Flowable composite was used for cementation of posts and also to build up the coronal structure using celluloid strip crowns. Both types of intracanal posts were evaluated for retention and marginal adaptation at 1, 6 and 12 months. The data obtained was subjected to statistical analysis. Conclusion:GFRCR intracanal posts showed better retention and marginal adaptation than omega shaped stainless steel wire posts.

scholarly journals In Vitro Repair of Fractured Fiber-Reinforced Cusp-Replacing Composite Restorations

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Willem M. M. Fennis ◽  
Cees M. Kreulen ◽  
Arzu Tezvergil ◽  
Lippo V. J. Lassila ◽  
Pekka K. Vallittu ◽  
...  
Keyword(s):  
Fracture Resistance ◽  
Resin Composite ◽  
Fiber Reinforced ◽  
Unidirectional Fibers ◽  
Reinforced Composite ◽  
Group A ◽  
Group B ◽  
In Vitro Repair ◽  
Previous Loading

Objective. To assess fracture resistance and failure mode of repaired fiber-reinforced composite (FRC) cusp-replacing restorations.Methods. Sixteen extracted human premolars with fractured cusp-replacing woven (Group (A)) or unidirectional (Group (B)) FRC restorations from a previous loading experiment were repaired with resin composite and loaded to fracture.Results. Differences in fracture loads between groups were not statistically significant (P=0.34). Fracture loads of repaired specimens were significantly lower than those of original specimens (P=0.02for Group (A) andP<0.001for Group (B)). Majority of specimens showed failure along the repaired surface. In Group (B) 89% of specimens showed intact tooth substrate after restoration fracture, while this was 28% in Group (A) (P=0.04).Conclusion. Fractured cusp-replacing FRC restorations that are repaired with resin composite show about half of fracture resistance of original restorations. Mode of failure with a base of unidirectional fibers is predominantly adhesive.

Efficacy and Safety of Oral Ivermectin and Topical Permethrin in the Treatment of Scabies

2020 ◽  
Vol 33 (1) ◽  
pp. 41-47
Author(s):  
Mohsena Akhter ◽  
Ishrat Bhuiyan ◽  
Zulfiqer Hossain Khan ◽  
Mahfuza Akhter ◽  
Gulam Kazem Ali Ahmad ◽  
...  
Keyword(s):  
Skin Diseases ◽  
Close Contact ◽  
Randomized Study ◽  
Sarcoptes Scabiei ◽  
Efficacy And Safety ◽  
Common Skin ◽  
Group A ◽  
The Mean ◽  
The Difference ◽  
Group B

Background: Scabies is one of the most common skin diseases in our country. It is caused by the mite Sarcoptes scabiei var hominis, which is an ecto-parasite infesting the epidermis. Scabies is highly contagious. Prevalence is high in congested or densely populated areas. Individuals with close contact with an affected person should be treated with scabicidal which is available in both oral and topical formulations. The only oral but highly effective scabicidal known to date is Ivermectin. Amongst topical preparations, Permethrin 5 % cream is the treatment of choice. Objective: To evaluate the efficacy & safety of oral Ivermectin compared to topical Permethrin in the treatment of scabies. Methodology: This prospective, non-randomized study was conducted at the out-patient department of Dermatology and Venereology of Shaheed Suhrawardy Medical College & Hospital over a period of 6 months, from August 2016 to January 2017. The study population consisted of one hundred patients having scabies, enrolled according to inclusion criteria. They were divided into two groups. group A was subjected to oral Ivermectin and the group B to Permethrin 5% cream. Patients were followed up on day 7 and 14 for assessment of efficacy and safety. Result: The mean scoring with SD in group A (Ivermectin) and group B (Permethrin) were 8.26 ± 2.22 and 7.59 ± 2.01 respectively at the time of observation. The difference between the mean score of the two group is not significant (p=0.117) the mean scoring with SD in group A and group B were 4.54 ± 2.05 and 1.64 ± 1.84 respectively at 7thdays. The difference between the mean score of the two group is significant (p<0.001). The mean scoring with SD in group A and group B were 2.68± 2.35 and .36± 1.10 respectively at 14th day difference between the mean score of the group is significant (p<0.001). Conclusion: Topical application of permethrin 5% cream is more effective and safer than oral Ivermectin in the treatment of scabies. TAJ 2020; 33(1): 41-47

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