Objective: The present study aims to investigate the reasons for the immediate failure of direct ... more Objective: The present study aims to investigate the reasons for the immediate failure of direct anterior and posterior resin composite restorations placed by dental students. Methods: A cross-sectional study on resin composite restorations placed by fourth- and fifth-year dental students (n=436). Variables included in the study were; the operative field isolation method, the time needed to complete the restoration after cavity preparation to polishing and finishing, and the plaque index of the patient. Restoration class distribution according to the type of tooth and cavity classification was examined and recorded. Restorations were clinically evaluated immediately after placement. It involved the assessment of the restoration’s mobility, marginal discoloration, and lack of anatomy. Results: A total of 233 direct anterior and posterior resin composite restorations which were placed by 127 students were diagnosed as failed restorations. The mode of failure was distributed as mobilit...
Background The aim of the current study was to investigate current dental practice in operative d... more Background The aim of the current study was to investigate current dental practice in operative dentistry in Jordan, and the relationship between evidence-based dentistry in caries research and decision making in clinical practice in operative dentistry. Materials and methods This cross-sectional study was conducted through a survey of dentists in Jordan. The survey aimed to explore the degree of knowledge and practice of evidence-based dentistry in caries research the dentists possess regarding clinical decision making in operative dentistry. The sample size was composed of (5811) dentists whom registered in Jordan Dental Association database. Descriptive statistics were generated and Chi-square test was used to examine associations between the different variables and the significance level was set at P < 0.05. Results 4000 responses were collected from the web-survey, response rate (68.83%). Nearly half of the surveyed dentists focus on the chief complaint of their patients (n ...
Background: The aim of the current study was to investigate current dental practice in operative ... more Background: The aim of the current study was to investigate current dental practice in operative dentistry in Jordan, and the relationship between evidence-based dentistry in caries research and decision making in clinical practice in operative dentistry. Methods: The study was conducted through a survey of dentists in Jordan. The survey aimed to explore the degree of knowledge and practice of evidence-based dentistry in caries research the dentists possess regarding clinical decision making in operative dentistry. Results: Nearly half of the surveyed dentists focus on the chief complaint of their patients (50.8%) rather than doing full mouth assessment. Nearly two-thirds of dentists (65.2%) treat lesions confined to enamel with operative treatment. Half of dentists use operative treatment when asked about the routine management of radiographically detected proximal caries confined to enamel. When treating incipient lesions, the majority (80.5%) use preventive treatment, and three-q...
Background The present study aimed to investigate the relationship between fluoride concentration... more Background The present study aimed to investigate the relationship between fluoride concentration and mineral distribution within the dentinal lesion body. Materials and Methods Remineralization of artificial deep dentinal lesions with various levels of fluoride was studied using scanning electron microscope, microhardness tests and polarized light microscope. Human molars were exposed to demineralization at pH 5.0 for two weeks. Then they were divided into different groups for remineralization with different fluoride concentrations (0.1–10.0 ppm) for 1, 2, 3 and 4 weeks. Results The results indicated a proportional relationship between fluoride concentration and dentinal lesion remineralization from 0.1–10.0 ppm. In the present study the formation of a well-remineralized surface layer inhibited remineralization at the lesion front. On the other hand the lesion front remineralization was found to be independent from fluoride concentration. Conclusions Our results stated that for eff...
Background. Rehabilitation of the edentulous patients has always been a challenge. The success of... more Background. Rehabilitation of the edentulous patients has always been a challenge. The success of conventional complete denture therapy might be affected by several factors such as patients’ age, personality, previous denture wearing experience, expectations, aesthetics, residual ridge form and anatomy, denture quality, the method of its construction, dentist experience, and dentist-patient relations. Objectives. The aim of this study was to compare patient satisfaction with complete dentures provided by fourth and fifth year dental students and prosthodontists with a minimum of 5 years’ experience at the University of Jordan Hospital 8 weeks after insertion. Methods. Questionnaires were distributed to a total of 60 completely edentulous patients who received complete maxillary and mandibular dentures. Besides demographic questions, the questionnaire included questions that probed the patient’s satisfaction with his maxillary and mandibular dentures in general using two types of sca...
Additional file 1. Survey consists of 12 questions covering demographic and professional backgrou... more Additional file 1. Survey consists of 12 questions covering demographic and professional background characteristics and attitude towards job to assess career satisfaction.
OBJECTIVES Some dental schools depend on the students' academic performance for admission pur... more OBJECTIVES Some dental schools depend on the students' academic performance for admission purposes. This research aimed at investigating the correlations between dental students' performance in specific academic courses and their preclinical and clinical counterparts, and the correlations between students' performance in the pre-clinical practical courses and the clinical courses. METHODS Academic and practical preclinical and clinical grades were retrieved for 811 students who graduated from the School of Dentistry, the University of Jordan between 2016 and 2018. Ten courses (five academic and five practical) were selected. Pearson's rho test was used to calculate the correlations between the courses. RESULTS Statistically significant weak to moderate positive correlations were found between each academic course and its preclinical or clinical counterparts and between preclinical and clinical courses. A statistically significant positive moderate correlation (P<0.001) was found between students' performance in fourth and fifth year restorative clinics. CONCLUSION The results of this study suggest that the academic performance could partially predict the practical performance in both the pre-clinical and clinical courses and that the clinical performance could partially be predicted from the pre-clinical practical performance. Moreover, students who can successfully perform the required clinical procedures in fourth year will successfully perform the required clinical procedures in fifth year. However, other confounding factors should be taken into consideration such as manual dexterity and artistic skills even though their intellectual abilities are average.
Objectives. The worldwide interest of both dentists and patients in esthetic dentistry has affect... more Objectives. The worldwide interest of both dentists and patients in esthetic dentistry has affected decision-making in dental practice. The aim of this study was to investigate contemporary dental practice in restorative dentistry and the relationship between evidence-based dentistry in caries research and decision-making in clinical practice in restorative dentistry. Methods. The study was conducted through a structured questionnaire distributed randomly at the Jordanian Dental Association registered dentists in Jordan. The questionnaire aimed to clarify the degree of knowledge and practice of evidence-based dentistry in caries research the dentists hold regarding clinical decision-making in restorative dentistry. Results. The majority of the surveyed dentists (77%) treat teeth with irreversible pulpitis with root canal treatment rather than vital pulp therapy. 13.8% routinely insert a post and 23% routinely crown the tooth after root canal treatment regardless of the remaining too...
Objectives: Manual skills form only a part of the capabilities required for a future dentist. Nev... more Objectives: Manual skills form only a part of the capabilities required for a future dentist. Nevertheless, they are very important components that should be tested. The aim of this study is to investigate if a correlation exists between dental students’ grades in the preclinical courses and their clinical performance. Methods: Preclinical/clinical grades were collected for first, fourth, and fifth year students who graduated from the Faculty of Dentistry at the University of Jordan, Amman, Kingdom of Hashemite Jordan, in 2014, and 2015. Two courses (Dental Anatomy and Conservative Dentistry) were selected. Correlations comparing the practical grades of Dental Anatomy course for first year students, and the practical grades of Conservative Dentistry course for the same students in fourth and fifth years. Results: Statistically significant positive correlation was found between the soap carving grades of first-year dental students and their practical grades in Operative Dentistry cou...
Background: In a country where admission to dental schools is based solely on the cognitive abili... more Background: In a country where admission to dental schools is based solely on the cognitive abilities of students, the aim of the study was to investigate the correlation between high school grade point average and graduating aca‐ demic achievement for dental students; moreover, determine whether a correlation exists between dental students’ graduating academic achievement and their career choices and job satisfaction. Methods: A five‐year retrospective cohort study was conducted at the University of Jordan, involving (828) den‐ tal graduates first enrolled between 2010 and 2014. Correlations comparing high school grade point average and graduating academic achievement were done for the total sample composed of (736) students. A short survey was constructed to assess the career choices and job satisfaction for recently graduated dentists and correlate them with their graduating academic achievement. Results: Statistically significant but weak positive correlation (0.3) was found bet...
Objectives: In a country where admission to dental schools is based on academic achievement of st... more Objectives: In a country where admission to dental schools is based on academic achievement of students, the aim of the study is to investigate the correlation between the practical achievements and the academic performance of dental students. In addition to determining if a correlation exists between dental students’ grades in the preclinical courses and their clinical performance. Methods: Academic and preclinical/clinical grades were collected for third, fourth and fifth year students who graduated from the School of Dentistry at The University of Jordan, in 2014, and 2015. Two courses (operative dentistry and fixed prosthodontics) were selected. Corre-lations comparing academic and practical grades and correlations comparing preclinical and clinical grades were done for the total samples of third, fourth, and fifth year students for each course. Results: Statistically significant weak to moderate positive correlations were found between academic and practical courses in each yea...
The Journal of international medical research, Jan 3, 2018
Objective To assess Jordanian dentists' current perception and attitudes towards amalgam and ... more Objective To assess Jordanian dentists' current perception and attitudes towards amalgam and composite restorations four years after the Minamata treaty was endorsed and suggest decision making factors that may influence the type of restoration requested by patients. Methods The cross-sectional study was conducted through structured questionnaires distributed to dentists in Amman, Jordan from June 2017 to February 2018. Results Of the 1686 dentists who were contacted 758 dentists (response rate 45%) responded to the questionnaire either by email or via field visits. Jordanian dentists used more composite restorations than amalgam. Recurrent caries followed by fracture of the restoration were the main reasons for replacement of both fillings by dentists. However, dentists suggested that the main reason patients requested replacement of amalgam was for 'staining'. In addition, a large proportion of the dentists had experienced patients who had asked either for replacement ...
The aim of this study is to evaluate the effect of different combinations of various surface trea... more The aim of this study is to evaluate the effect of different combinations of various surface treatments on the shear bond strength (SBS) of repaired composite resin. A total of 122 composite samples were prepared from Filtek Z350 XT. Samples were light cured and stored for 6 weeks. Surface treatment of old composite was done in five groups: Group I: bur roughening + phosphoric acid etching, group II: bur roughening + hydrofluoric acid etching + silane coupling agent, group II: air abrasion + phosphoric acid etching, group IV: air abrasion + phosphoric acid etching + silane coupling agent, group V: air abrasion + hydrofluoric acid etching + silane coupling agent. Bonding agent was applied to all surface-treated old composites and light cured. The fresh composite resin was bonded to treated surfaces and cured and stored in water at 37°C for 6 weeks. Shear bond strength was measured by a universal testing machine. Shear bond strength values of all groups were not statistically signific...
Objective: The present study aims to investigate the reasons for the immediate failure of direct ... more Objective: The present study aims to investigate the reasons for the immediate failure of direct anterior and posterior resin composite restorations placed by dental students. Methods: A cross-sectional study on resin composite restorations placed by fourth- and fifth-year dental students (n=436). Variables included in the study were; the operative field isolation method, the time needed to complete the restoration after cavity preparation to polishing and finishing, and the plaque index of the patient. Restoration class distribution according to the type of tooth and cavity classification was examined and recorded. Restorations were clinically evaluated immediately after placement. It involved the assessment of the restoration’s mobility, marginal discoloration, and lack of anatomy. Results: A total of 233 direct anterior and posterior resin composite restorations which were placed by 127 students were diagnosed as failed restorations. The mode of failure was distributed as mobilit...
Background The aim of the current study was to investigate current dental practice in operative d... more Background The aim of the current study was to investigate current dental practice in operative dentistry in Jordan, and the relationship between evidence-based dentistry in caries research and decision making in clinical practice in operative dentistry. Materials and methods This cross-sectional study was conducted through a survey of dentists in Jordan. The survey aimed to explore the degree of knowledge and practice of evidence-based dentistry in caries research the dentists possess regarding clinical decision making in operative dentistry. The sample size was composed of (5811) dentists whom registered in Jordan Dental Association database. Descriptive statistics were generated and Chi-square test was used to examine associations between the different variables and the significance level was set at P < 0.05. Results 4000 responses were collected from the web-survey, response rate (68.83%). Nearly half of the surveyed dentists focus on the chief complaint of their patients (n ...
Background: The aim of the current study was to investigate current dental practice in operative ... more Background: The aim of the current study was to investigate current dental practice in operative dentistry in Jordan, and the relationship between evidence-based dentistry in caries research and decision making in clinical practice in operative dentistry. Methods: The study was conducted through a survey of dentists in Jordan. The survey aimed to explore the degree of knowledge and practice of evidence-based dentistry in caries research the dentists possess regarding clinical decision making in operative dentistry. Results: Nearly half of the surveyed dentists focus on the chief complaint of their patients (50.8%) rather than doing full mouth assessment. Nearly two-thirds of dentists (65.2%) treat lesions confined to enamel with operative treatment. Half of dentists use operative treatment when asked about the routine management of radiographically detected proximal caries confined to enamel. When treating incipient lesions, the majority (80.5%) use preventive treatment, and three-q...
Background The present study aimed to investigate the relationship between fluoride concentration... more Background The present study aimed to investigate the relationship between fluoride concentration and mineral distribution within the dentinal lesion body. Materials and Methods Remineralization of artificial deep dentinal lesions with various levels of fluoride was studied using scanning electron microscope, microhardness tests and polarized light microscope. Human molars were exposed to demineralization at pH 5.0 for two weeks. Then they were divided into different groups for remineralization with different fluoride concentrations (0.1–10.0 ppm) for 1, 2, 3 and 4 weeks. Results The results indicated a proportional relationship between fluoride concentration and dentinal lesion remineralization from 0.1–10.0 ppm. In the present study the formation of a well-remineralized surface layer inhibited remineralization at the lesion front. On the other hand the lesion front remineralization was found to be independent from fluoride concentration. Conclusions Our results stated that for eff...
Background. Rehabilitation of the edentulous patients has always been a challenge. The success of... more Background. Rehabilitation of the edentulous patients has always been a challenge. The success of conventional complete denture therapy might be affected by several factors such as patients’ age, personality, previous denture wearing experience, expectations, aesthetics, residual ridge form and anatomy, denture quality, the method of its construction, dentist experience, and dentist-patient relations. Objectives. The aim of this study was to compare patient satisfaction with complete dentures provided by fourth and fifth year dental students and prosthodontists with a minimum of 5 years’ experience at the University of Jordan Hospital 8 weeks after insertion. Methods. Questionnaires were distributed to a total of 60 completely edentulous patients who received complete maxillary and mandibular dentures. Besides demographic questions, the questionnaire included questions that probed the patient’s satisfaction with his maxillary and mandibular dentures in general using two types of sca...
Additional file 1. Survey consists of 12 questions covering demographic and professional backgrou... more Additional file 1. Survey consists of 12 questions covering demographic and professional background characteristics and attitude towards job to assess career satisfaction.
OBJECTIVES Some dental schools depend on the students' academic performance for admission pur... more OBJECTIVES Some dental schools depend on the students' academic performance for admission purposes. This research aimed at investigating the correlations between dental students' performance in specific academic courses and their preclinical and clinical counterparts, and the correlations between students' performance in the pre-clinical practical courses and the clinical courses. METHODS Academic and practical preclinical and clinical grades were retrieved for 811 students who graduated from the School of Dentistry, the University of Jordan between 2016 and 2018. Ten courses (five academic and five practical) were selected. Pearson's rho test was used to calculate the correlations between the courses. RESULTS Statistically significant weak to moderate positive correlations were found between each academic course and its preclinical or clinical counterparts and between preclinical and clinical courses. A statistically significant positive moderate correlation (P<0.001) was found between students' performance in fourth and fifth year restorative clinics. CONCLUSION The results of this study suggest that the academic performance could partially predict the practical performance in both the pre-clinical and clinical courses and that the clinical performance could partially be predicted from the pre-clinical practical performance. Moreover, students who can successfully perform the required clinical procedures in fourth year will successfully perform the required clinical procedures in fifth year. However, other confounding factors should be taken into consideration such as manual dexterity and artistic skills even though their intellectual abilities are average.
Objectives. The worldwide interest of both dentists and patients in esthetic dentistry has affect... more Objectives. The worldwide interest of both dentists and patients in esthetic dentistry has affected decision-making in dental practice. The aim of this study was to investigate contemporary dental practice in restorative dentistry and the relationship between evidence-based dentistry in caries research and decision-making in clinical practice in restorative dentistry. Methods. The study was conducted through a structured questionnaire distributed randomly at the Jordanian Dental Association registered dentists in Jordan. The questionnaire aimed to clarify the degree of knowledge and practice of evidence-based dentistry in caries research the dentists hold regarding clinical decision-making in restorative dentistry. Results. The majority of the surveyed dentists (77%) treat teeth with irreversible pulpitis with root canal treatment rather than vital pulp therapy. 13.8% routinely insert a post and 23% routinely crown the tooth after root canal treatment regardless of the remaining too...
Objectives: Manual skills form only a part of the capabilities required for a future dentist. Nev... more Objectives: Manual skills form only a part of the capabilities required for a future dentist. Nevertheless, they are very important components that should be tested. The aim of this study is to investigate if a correlation exists between dental students’ grades in the preclinical courses and their clinical performance. Methods: Preclinical/clinical grades were collected for first, fourth, and fifth year students who graduated from the Faculty of Dentistry at the University of Jordan, Amman, Kingdom of Hashemite Jordan, in 2014, and 2015. Two courses (Dental Anatomy and Conservative Dentistry) were selected. Correlations comparing the practical grades of Dental Anatomy course for first year students, and the practical grades of Conservative Dentistry course for the same students in fourth and fifth years. Results: Statistically significant positive correlation was found between the soap carving grades of first-year dental students and their practical grades in Operative Dentistry cou...
Background: In a country where admission to dental schools is based solely on the cognitive abili... more Background: In a country where admission to dental schools is based solely on the cognitive abilities of students, the aim of the study was to investigate the correlation between high school grade point average and graduating aca‐ demic achievement for dental students; moreover, determine whether a correlation exists between dental students’ graduating academic achievement and their career choices and job satisfaction. Methods: A five‐year retrospective cohort study was conducted at the University of Jordan, involving (828) den‐ tal graduates first enrolled between 2010 and 2014. Correlations comparing high school grade point average and graduating academic achievement were done for the total sample composed of (736) students. A short survey was constructed to assess the career choices and job satisfaction for recently graduated dentists and correlate them with their graduating academic achievement. Results: Statistically significant but weak positive correlation (0.3) was found bet...
Objectives: In a country where admission to dental schools is based on academic achievement of st... more Objectives: In a country where admission to dental schools is based on academic achievement of students, the aim of the study is to investigate the correlation between the practical achievements and the academic performance of dental students. In addition to determining if a correlation exists between dental students’ grades in the preclinical courses and their clinical performance. Methods: Academic and preclinical/clinical grades were collected for third, fourth and fifth year students who graduated from the School of Dentistry at The University of Jordan, in 2014, and 2015. Two courses (operative dentistry and fixed prosthodontics) were selected. Corre-lations comparing academic and practical grades and correlations comparing preclinical and clinical grades were done for the total samples of third, fourth, and fifth year students for each course. Results: Statistically significant weak to moderate positive correlations were found between academic and practical courses in each yea...
The Journal of international medical research, Jan 3, 2018
Objective To assess Jordanian dentists' current perception and attitudes towards amalgam and ... more Objective To assess Jordanian dentists' current perception and attitudes towards amalgam and composite restorations four years after the Minamata treaty was endorsed and suggest decision making factors that may influence the type of restoration requested by patients. Methods The cross-sectional study was conducted through structured questionnaires distributed to dentists in Amman, Jordan from June 2017 to February 2018. Results Of the 1686 dentists who were contacted 758 dentists (response rate 45%) responded to the questionnaire either by email or via field visits. Jordanian dentists used more composite restorations than amalgam. Recurrent caries followed by fracture of the restoration were the main reasons for replacement of both fillings by dentists. However, dentists suggested that the main reason patients requested replacement of amalgam was for 'staining'. In addition, a large proportion of the dentists had experienced patients who had asked either for replacement ...
The aim of this study is to evaluate the effect of different combinations of various surface trea... more The aim of this study is to evaluate the effect of different combinations of various surface treatments on the shear bond strength (SBS) of repaired composite resin. A total of 122 composite samples were prepared from Filtek Z350 XT. Samples were light cured and stored for 6 weeks. Surface treatment of old composite was done in five groups: Group I: bur roughening + phosphoric acid etching, group II: bur roughening + hydrofluoric acid etching + silane coupling agent, group II: air abrasion + phosphoric acid etching, group IV: air abrasion + phosphoric acid etching + silane coupling agent, group V: air abrasion + hydrofluoric acid etching + silane coupling agent. Bonding agent was applied to all surface-treated old composites and light cured. The fresh composite resin was bonded to treated surfaces and cured and stored in water at 37°C for 6 weeks. Shear bond strength was measured by a universal testing machine. Shear bond strength values of all groups were not statistically signific...
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