bluuebunny/crossref_metadata_2025_split huggingface dataset:
Surface Hardness Properties of Resin-Modified Glass Ionomer Cements and Polyacid-Modified Composite Resins
Authors: Bayindir Yusuf Ziya , Yildiz Mehmet 
Published: July 2019

Abstract
In this study the top and bottom surface hardness of two polyacid-modified composite resins (PMCRs), one resin-modified glass ionomer cement (RMGIC), and one composite resin were evaluated. The affect of water storage on their hardness was also investigated. The study was conducted using four different groups, each having five specimens obtained from fiberglass die molds with a diameter of 5 mm and a height of 2 mm. Measurements were made on the top and bottom surface of each specimen and recorded after 24 hours and again at 60 days. All tested materials showed different hardness values, and the values of top surfaces of the specimens were found to be higher than the bottom surface in all test groups. There was no statistical difference in the Vickers hardness (HV) values when the test specimens were kept in water storage. In conclusion Hytac displayed microhardness values higher than Vitremer and Dyract. We found the order of HV values to be Surfil > Hytac > Dyract > Vitremer, respectively. Vitremer presented the lowest microhardness level and Surfil the highest.

Citation
Bayindir YZ, Yildiz M. Surface Hardness Properties of Resin-Modified Glass Ionomer Cements and Polyacid-Modified Composite Resins. J Contemp Dent Pract 2004 November;(5)4:042-049.
Gender-Specific Oral Health Attitudes and Behavior among Dental Students in Jordan
Authors: Al-Omari Quasem Diefallah , Hamasha Abed Al-Hadi 
Published: July 2019

Abstract
The aim of this study was to determine the difference in oral health attitudes and behavior between male and female dental students at Jordan University of Science and Technology (JUST). A self-administered questionnaire based on a modified version of the Hiroshima University Dental Behavior Inventory (HU-DBI) was distributed among 375 dental students. The response rate was 83.7% with 48% males and 52% females responding. Female students reported brushing their teeth more frequently than male students (P<0.001). Approximately 47% of the male students brushed their teeth less than twice daily compared to 21% of the female students. Also, female students believed in the necessity of using toothpaste during brushing more often than male students (P<0.01). On the other hand, smoking was much more frequent among males than among females (31% vs. 4%) (P<0.001). Male students indicated they had been smoking for longer periods of time than female students. This survey shows male students visit the dentist only when they have dental pain. While this was more than their female peers, it was not statistically significant (P= 0.056). In general the present study showed dental students in Jordan had poor oral health. Further research is needed to examine the students clinically for periodontal and caries conditions. Students should be encouraged to be a model for oral health for their families, friends, and patients.

Citation
Al-Omari QD, Hamasha AA. Gender-Specific Oral Health Attitudes and Behavior among Dental Students in Jordane. J Contemp Dent Pract 2005 February;(6)1:107-114.
The Effectiveness of Three Instrumentation Techniques on the Elimination of Entererococcus Faecalis from a Root Canal: An In Vitro Study
Authors: Çolak Meltem , Evcil Sinan , Bayindir Y. Ziya , Yigit Nimet 
Published: July 2019

Abstract
The in vitro reduction of a bacterial population in a root canal by mechanical instrumentation using three techniques was evaluated. Root canals inoculated with a Enterococcus faecalis (E. faecalis) suspension were instrumented using hand Hedstroem files, Giromatic files, and Hero 642 rotary instruments. Irrigation was performed using sterile saline solution. Root canals were sampled before and after instrumentation. After serial dilutions, samples were plated onto Mitis-Salivarius agar and the colony forming units grown were counted. All instruments tested were able to significantly reduce the number of bacterial cells in the root canal, however, the results of this study indicated that Hedstroem files, Giromatic, and Hero 642 techniques were not significantly different in their ability to reduce intracanal bacteria.

Citation
Colak M, Evcil S, Bayindir Y, Yigit N. The Effectiveness of Three Instrumentation Techniques on the Elimination of Enterococcus Faecalis from a Root Canal: An In Vitro Study. J Contemp Dent Pract 2005 February;(6)1:094-106.
The Influence of Some Dentin Primers on Calcium Hydroxide Lining Cement
Authors: El-Araby Alaa , Al-Jabab Abed 
Published: July 2019

Abstract
Dentin primer is applied as a routine procedure prior to bonding to improve the sealing properties of direct polymerizing resins. Some primers contain acetone or alcohol that may affect the properties of calcium hydroxide liner which is placed as a direct or indirect pulp cap. If calcium hydroxide is softened or smeared over the cavity walls, the bonding will be impaired. Therefore, if this occurs, the cement must be removed, the walls must be cleansed, and the procedure must be repeated with careful application of dentin primer.

Objective
The purpose of this study was to determine the wear and compressive strength of a calcium hydroxide liner after exposure to different kinds of dentin primers for different periods of time.

Methods
The calcium hydroxide used in this study was Dycal™. It was mixed according to the manufacturer's instructions and placed in plastic rings of 0.5 mm x 5 mm and allowed to set at 37°C for 15 min under 500 gm load. To determine erosion, the height for each sample before and after application of primers was recorded using a Digital Height Measuring Instrument “Digmar” 817. Compressive strength specimens were also prepared.

Results
Calcium hydroxide treated with Optibond (alcohol based) or Syntac (acetone based) for 1 min or 5 min had the highest erosion values and the lowest compressive strength values. Gluma CPs (water based primer) had the least effect on calcium hydroxide values.

Citation
El-Araby A, Al-Jabab A. The Influence of Some Dentin Primers on Calcium Hydroxide Lining Cement. J Contemp Dent Pract 2005 May;(6)2:001-009.
Benign Lymphoid Hyperplasia of the Tongue Masquerading as Carcinoma: Case Report and Literature Review
Authors: Carnelio Sunitha , Rodrigues Gabriel 
Published: July 2019

Abstract
Lymphoid hyperplasia of the tongue is a very rare benign lymphoproliferative lesion that closely resembles carcinoma or lymphoma, clinically or histopathologically. A case of benign lymphoid hyperplasia (BLH) of the tongue is reported. Clinically this lesion presented as a painless ulcer, which mimicked carcinoma of the tongue. Microscopy showed typical histologic features of multiple germinal centers with a rim of small mature lymphocytes together with a mixed, mainly mononuclear infiltrate which clinched the diagnosis of benign lymphoid hyperplasia. This diagnosis averted extensive investigations and major surgery. The etiology of these lesions is unknown. Their distinction from carcinoma and lymphoma is discussed.

Citation
Carnelio S, Rodrigues G. Benign Lymphoid Hyperplasia of the Tongue Masquerading as Carcinoma: Case Report and Literature Review. J Contemp Dent Pract 2005 August;(6)3:111-119.
Fracture Resistance of Premolar Teeth Restored with Different Filling Techniques
Authors: Martins Luís Roberto Marcondes , França Fabiana Mantovani Gomes , Paulillo Luís Alexandre Maffei Sartini , Worschech Claudia Cia , Lovadino José Roberto 
Published: July 2019

Abstract
The aim of this study is to verify the fracture resistance of premolars with large mesiocclusodistal (MOD) preparations with composite resin using different incremental techniques when subjected to an occlusal load. Forty maxillary premolar teeth were randomly divided into four groups (n=10). Class II MOD cavities were prepared in all specimens with parallel walls and no approximal boxes. The resulting isthmus width was 1/3 the distance between the cusp tips and 3/4 the height of the crown. Teeth in group I, the control group, were not restored. Specimens in group II were restored in three incremental vertical layers. Group III specimens were restored in three horizontal layers, and finally, specimens in group IV were restored in oblique layers. With exception of the placement technique, specimens in groups II, III and IV were restored using the Single Bond adhesive system and P60 composite resin following manufacturer's recommendations. A 4 mm diameter steel sphere contacted the buccal and lingual cusps of the tested teeth at a crosshead speed of 0.5 mm/min until fracture occurred. The values obtained in this study were subjected to Analysis of Variance (ANOVA) and a Tukey–Kramer test. Only group I (non-restored) obtained a minor means of fracture resistance. No significant differences among groups II, III, and IV were found. This study shows on large MOD cavities the incremental filling techniques do not influence the fracture resistance of premolar teeth restored with composite resin.

Citation
França FMG, Worschech CC, Paulillo LAMS, Martins LRM, Lovadino JR. Fracture Resistance of Premolar Teeth Restored with Different Filling Techniques. J Contemp Dent Pract 2005 August;(6)3:062-069.
Lifestyle and Psychosocial Factors Associated with Tooth Loss in Mexican Adolescents and Young Adults
Authors: Casanova-Rosado Juan Fernando , Medina-Solfs Carlo Eduardo , Vallejos-Sánchez Ana Alicia , Casanova-Rosado Alejandro José , Maupomé Gerardo , Avila-Burgos Leticia 
Published: July 2019

Abstract

Objective
The aim of the present study was to examine: (1) the prevalence of tooth loss in persons living in community dwellings and (2) the strength of the association identified between tooth loss experience and the psychosocial factors of lifestyle, stress, and anxiety.

Material And Methods
A cross-sectional study was carried out in a convenience sample where data were collected by means of self-administered questionnaires of lifestyle and psychosocial factors (stress and anxiety) and a clinical examination. A total of 516 subjects aged 14-30 years of age were included in the study. Subjects had a visual dental examination. Prevalence and mean of tooth loss were calculated excluding third molars, and their related factors were adjusted in a binary logistic regression.

Results
Mean age of participants was 17.4±3.0 years; 45.5% were men. The prevalence of tooth loss (when at least one tooth was lost) was 20.5%. Among the 516 persons, a total of 201 teeth were lost with a mean tooth loss 0.39±0.95 overall. Mean tooth loss in subjects with at least one missing tooth was 1.90±1.26 teeth. Results adjusted by anxiety in the multivariate logistic regression model showed tooth loss was associated with lifestyle (OR=1.95, 95% CI=1.17 – 3.24), age (OR=2.65, 95% CI=1.64 – 4.26), and Angle's malocclusion II and III (OR=2.86; 95% CI=1.67 – 4.90). A slight association toward tooth loss was observed (p<0.10) in the sex and stress variables.

Conclusions
Lifestyle and tooth loss have a substantial association. According to age group, these results suggest tooth loss is an oral health problem in the study population.

Citation
Casanova-Rosado JF, Medina-Solis CE, Vallejos-Sanchez AA, Casanova-Rosado AJ, Maupomé G, Avila-Burgos L. Lifestyle and Psychosocial Factors Associated with Tooth Loss in Mexican Adolescents and Young Adults. J Contemp Dent Pract 2005 August;(6)3:070-077.
Antibacterial Activity of Aqueous Extracts of Selected Chewing Sticks
Authors: Ndukwe Kizito Chioma , Okeke Iruka N. , Lamikanra Adebayo , Adesina Simeon K. , Aboderin Oladipo 
Published: July 2019

Abstract
The aim of this study was to determine the antibacterial activity in extracts obtained from various Nigerian chewing sticks. Aqueous extracts from seventeen chewing sticks and the fruit of C. ferruginea, one fruit used in oral hygiene in Nigeria, were screened for antibacterial activity against type cultures of Staphylococcus aureus, Bacillus subtilis, Escherichia coli, and Pseudomonas aeruginosa. Eleven of the test extracts showed activity against at least two of these referenced organisms. Minimum inhibitory concentrations (MIC) of these eleven extracts against clinical isolates from orofacial infection were determined. All the extracts demonstrated activity against Staphylococcal and Streptococcal isolates. Over half of the extracts were active against Enterobacteriaceae and obligate anaerobic isolates, including Prevotella melaninogenica, Porphyromonas gigivalis, Fusobacterium nucleatum, and Peptostreptococcus prevotii. Extracts of the Vitellaria paradoxa root, Bridellia ferruginea stem and twigs, Garcinia cola stem, Terminalia glaucescens root, Morinda lucida root, and Cnestis ferruginea fruit showed appreciable activity against all classes of bacterial isolates. The extracts of these plants may serve as sources for chemotherapeutic agents for the management of orofacial infections.

Citation
Ndukwe KC, Okeke IN, Lamikanra A, Adesina SK, Aboderin O. Antibacterial Activity of Aqueous Extracts of Selected Chewing Sticks. J Contemp Dent Pract 2005 August;(6)3:086-094.
Fiber-reinforced Composite Fixed Partial Denture to Restore Missing Posterior Teeth: A Case Report
Authors: Coccia Erminia , Rappelli Giorgio 
Published: July 2019

Abstract
In patients refusing implant surgery for psychological reasons, when minimal tooth reduction is desired, a fiberreinforced composite inlay fixed partial denture (IFPD) can be used to replace missing teeth. In comparison to other restorative systems this conservative approach carries a lower risk of pulp exposure and/or periodontal inflammation, maintaining the health of supporting tissues. The purpose of this case report is to describe the clinical procedure for fabricating an IFPD with a pre-impregnated glass fiber system and a hybrid composite. Fiber-reinforced composite, in combination with adhesive techniques, appears promising for an IFPD. Further clinical investigation will be required to provide additional information on this technique.

Citation
Rappelli G, Coccia E. Fiber-reinforced Composite Fixed Partial Denture to Restore Missing Posterior Teeth: A Case Report. J Contemp Dent Pract 2005 November;(6)4:168-177.
Oral Health Status in a Population of Nigerian Diabetics
Authors: Fatusi Olawunmi A. , Ogunbodede Eyitope O. , Akintomide Anthony , Kolawole Kikelomo , Ajayi Adesuyi 
Published: July 2019

AbstractOral manifestations of diabetes mellitus have been documented, but the effect of glycemic control on the oral tissues has been scantily reported. The oral health status of 65 metabolically controlled adult diabetic patients attending the Diabetes Clinic of Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Nigeria, was prospectively assessed over six months and compared with that of 54 non-diabetic acting as controls. The mean duration of diabetes was 100.5±85.1 months. The difference in periodontal status of the patients and control, assessed using the Community Periodontal Index of Treatment Needs (CPITN), was not statistically significant (p=0.07). The degree of hyposalivation between the two groups was, however, statistically significant (p<0.05). No significant difference was observed in the altered taste, burning mouth sensation, angular cheilitis, glossitis, and stomatitis status of the two groups. We conclude that, with adequate metabolic control, the oral health status of a diabetic may not be significantly different from that of a non-diabetic except for xerostomia. A good understanding of the interactions between systemic diseases and oral health is imperative for physicians and dental practitioners. The need for early detection and closer linkages between the dental and medical professions in managing diabetic patients is emphasized.CitationOgunbodede EO, Fatusi OA, Akintomide A, Kolawole K, Ajayi A. Oral Health Status in a Population of Nigerian Diabetics. J Contemp Dent Pract 2005 November;(6)4:075-084.
An Application of a Splint Purposeful Resin-Bonded Fixed Partial Denture after Orthodontic Treatment: A Case Report
Authors: Baydaş Bülent , Denizoğlu Saip 
Published: July 2019

AbstractAn adult male patient who had lost his maxillary left central incisor seven years ago in a traffic accident presented with a chief complaint about his unaesthetic appearance associated with the loss of his maxillary left central incisor space, a Class III molar occlusion, and an anterior open bite malocclusion due to tonguethrust swallowing. Fixed orthodontic treatment was rendered following fan-type expansion of the maxilla. A Maryland bridge as a minimally invasive dentistry approach was used as a retention appliance and the patient's aesthetic appearance was restored.CitationBaydaş B, Denizoğlu S. An Application of a Split Purposeful Resin-Bonded Fixed Partial Denture after Orthodontic Treatment: A Case Report. J Contemp Dent Pract 2006 February;(7)1:141-149.
The Attachment of V79 and Human Periodontal Ligament Fibroblasts on Periodontally Involved Root Surfaces Following Treatment with EDTA, Citric Acid, or Tetracycline HCL: An SEM in vitro Study
Authors: Chandra R. Viswa , Jagetia Ganesh Chandra , Bhat K. Mahalinga 
Published: July 2019

Abstract

Objective
The present in vitro study has been designed to establish and compare the effects of citric acid, EDTA, and tetracycline HCl on human periodontally diseased roots on the structure, attachment, and orientation of V79 (primary Chinese hamster lung fibroblasts) cells and human periodontal ligament fibroblasts (HPDL).

Materials and Methods
Commercially availableV79 cells and HPDL derived from healthy human third molars were used in this study. These fibroblasts were left in solution for seven days in order to attain confluence. Forty single-rooted teeth were obtained from patients diagnosed with periodontitis. The crown part was removed under constant irrigation and the root was split vertically into two equal halves, thus, yielding 80 specimens. Following scaling and root planing, the specimens were washed with phosphate buffered saline (PBS) and kept in 50 μg/ml gentamycin sulphate solution for 24 hours. The root pieces were then treated as follows: citric acid at pH 1, 24% EDTA, or with a 10% solution of tetracycline HCl and were then placed in V79 fibroblast cultures and HPDL cultures. The specimens were harvested after four weeks and were fixed in 2.5% glutaraldehyde in PBS before preparation for scanning electron microscopy (SEM).

Results
The behavior of V79 cells was similar to that of human periodontal ligament cells on root conditioned surfaces. V79 and HPDL showed a healthy morphology on root surfaces treated with citric acid and EDTA and a relatively unhealthy appearance on root surfaces treated with tetracycline HCl and distilled water (control group).

Conclusion
The results suggest the use of citric acid and EDTA as root conditioning agents favorably affects the migration, attachment, and morphology of fibroblasts on human root surfaces, which may play a significant role in periodontal healing and regeneration.

Citation
Chandra RV, Jagetia GC, Bhat KM. The Attachment of V79 and Human Periodontal Ligament Fibroblasts on Periodontally Involved Root Surfaces Following Treatment with EDTA, Citric Acid, or Tetracycline HCL: An SEM in vitro Study. J Contemp Dent Pract 2006 February;(7)1:044-059.
A Clinical Evaluation of Anorganic Bovine Bone Graft Plus 10% Collagen with or without a Barrier in the Treatment of Class II Furcation Defects
Authors: Reddy Krishnanjaneya Pathakota , Nayak Dilip Gopinath , Uppoor A Ashita Sadananda 
Published: July 2019

Abstract
The use of bone replacement grafts with barrier membranes in class II furcation defects are aimed at improving the outcome of the regenerative technique. In this regard, however, there is a paucity of studies comparing the results obtained with bone grafts alone or in combination with barrier membranes. The aim of this study was to clinically compare an anorganic bovine bone graft plus 10% collagen (BO) with or without a bioresorbable collagen barrier (BG) in human mandibular molar class II furcation defects.

Methods and Materials
Twenty mandibular class II furcation defects (ten patients with bilateral defects) were treated either with BO (group I) or a combination of BO/BG (group II). Each defect was randomly assigned to either group I or group II. The soft tissue and hard tissue measurements including vertical probing depth (VPD), horizontal probing depth (HPD), clinical attachment level (CAL), gingival recession (GR), vertical depth of furcation defect (VDF), and horizontal depth of furcation defect (HDF) were recorded at baseline and six months after surgery.

Results
Both treatment procedures resulted in statistically significant reduction in VPD and HPD, gain in CAL, and reduction in VDF and HDF. There was a statistically significant difference between group I and group II in all soft and hard tissue parameters with the exception of VPD reduction and gingival recession.

Conclusion
The findings of this study suggest superior clinical results with BO/BG treatment when compared to BO treatment in mandibular class II furcation defects.

Citation
Reddy KP, Nayak DG, Uppoor A AS. A Clinical Evaluation of Anorganic Bovine Bone Graft Plus 10% Collagen with or without a Barrier in the Treatment of Class II Furcation Defects. J Contemp Dent Pract 2006 February;(7)1:060-070.
Retrobulbar Hemorrhage: A Case Report
Authors: Machado R.A. , Silveira R. Lanes , Borges H.O.I , Filho A.M. Bourguignon , de Oliveira M. Gerhardt 
Published: July 2019

Abstract
Retrobulbar hemorrhage is a rare complication that may occur after mid-face injuries or following soft and hard tissue surgery around the eyes. The cardinal signs and symptoms of retrobulbar hemorrhage are pain, diplopia, ophthalmoplegia, a progression of increasing proptosis, and decreasing visual acuity leading to blindness. The diagnosis can be confirmed with computed tomography (CT) of the orbit or with ocular ultrasound. These diagnostic images are also important to define the size of the hematoma. This report describes a traumatic retrobulbar hemorrhage. In this case there were no signs of acute visual loss, and conservative treatment was possible without surgical intervention.

Citation
Machado RA, Silveira RL, Borges HOI, Filho AMB, de Oliveira G. Retrobulbar Hemorrhage: A Case Report. J Contemp Dent Pract 2006 May;(7)2:130-136.