bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of Jaw Clenching and Jaw Alignment Mouthpiece Use on Force Production During Vertical Jump and Isometric Clean Pull
Authors: Allen Charles R. , Fu Yang-Chieh , Cazas-Moreno Vanessa , Valliant Melinda W. , Gdovin Jacob R. , Williams Charles C. , Garner John C. 
Published: August 2017

Abstract
Allen, CR, Fu, Y-C, Cazas-Moreno, V, Valliant, MW, Gdovin, JR, Williams, CC, and Garner, JC. Effects of jaw clenching and jaw alignment mouthpiece use on force production during vertical jump and isometric clean pull. J Strength Cond Res 32(1): 237–243, 2018—This study examined the effects of jaw clenching, a self-adapted, jaw-repositioning mouthpiece on force production during maximum countermovement vertical jump and maximum isometric midthigh clean pull assessments in an attempt to determine any ergogenic effect attributable to clenching, jaw-repositioning mouthpiece use, or the combination of both. Thirty-six male subjects performed vertical jump and isometric clean pull assessments from a force platform under various mouthpiece and clench conditions. A 3 × 2 (mouthpiece × clench) repeated-measures analysis of variance was conducted to analyze each of the following force production variables for both assessments: peak force, normalized peak force, and rate of force development. In addition, jump height was analyzed for the vertical jump. Results revealed improvements in peak force (F
1,35 = 15.84, p ≤ 0.001,

JOURNAL/jscr/04.03/00124278-201801000-00030/inline-formula1/v/2023-08-19T002744Z/r/image-tiff

= 0.31), normalized peak force (F
1,35 = 16.28, p ≤ 0.001,

JOURNAL/jscr/04.03/00124278-201801000-00030/inline-formula2/v/2023-08-19T002744Z/r/image-tiff

= 0.32), and rate of force development (F
1,35 = 12.89, p = 0.001,

JOURNAL/jscr/04.03/00124278-201801000-00030/inline-formula3/v/2023-08-19T002744Z/r/image-tiff

= 0.27) during the isometric clean pull assessment when participants maximally clenched their jaw, regardless of mouthpiece condition. There were no statistically significant differences in jump height, peak force, normalized peak force, or rate of force development during the vertical jump for any treatment condition. This study supports previous research demonstrating that the implementation of remote voluntary contractions such as jaw clenching can lead to concurrent activation potentiation and a resulting ergogenic effect during activities involving and requiring high-force production.
Inter- and Intra-rater Reliability of the Athletic Ability Assessment in Subelite Australian Rules Football Players
Authors: Rogers Daniel K. , McKeown Ian , Parfitt Gaynor , Burgess Darren , Eston Roger G. 
Published: August 2017

Abstract
Rogers, DK, McKeown, I, Parfitt, G, Burgess, D, and Eston, RG. Inter- and intra-rater reliability of the athletic ability assessment in subelite Australian rules football players. J Strength Cond Res 33(1): 125–138, 2019—The aim of this study was to determine the inter- and intra-rater rater reliability of the Athletic Ability Assessment (AAA) in subelite Australian Rules football (ARF) players. Eighteen male ARF players completed the AAA movement assessment (overhead squat, double lunge [left and right], single-leg Romanian deadlift [left and right], chin-up and push-up), on 2 occasions separated by 1 week. During the first movement assessment, players were filmed in the frontal and sagittal planes. Ten raters took part in the study (1 experienced rater and 9 novices) and were assigned in a quasirandom manner, to complete either (a) real-time assessment on 2 occasions, (b) real-time assessment on 1 occasion, or (c) video-based assessment on 2 occasions. When assessed in real-time, of the 7 component movements of the AAA, raters registered moderate or greater intrarater agreement on between 2 and 5 occasions. Intraclass correlation coefficients (ICCs) of between 0.50 and 0.61 for the AAA total score indicated poor real-time intrarater reliability for this variable. When assessed by video-recording, raters registered moderate or greater intrarater agreement on between 6 and 7 occasions. The ICC for total score ranged between 0.60 and 0.93. Overall poor interrater reliability was evident for AAA component movements regardless of whether it was assessed in real-time or from video. Findings suggest the AAA is most reliably used when assessed through video. It is recommended that if comparison between multiple raters is desired, a stringent training process be applied so that the interpretation of AAA scoring criteria is standardized across raters.
Maxillofacial trauma in a public hospital in Central Brazil: A retrospective study of 405 patients
Authors: Scartezini Guilherme Romano , Guedes Orlando Aguirre , Alencar Ana Helena Gonçalves de , Estrela Cyntia Rodrigues de Araújo , Estrela Carlos 
Published: August 2017

OBJECTIVE: To evaluate epidemiological aspects of maxillofacial injuries in hospitalized patients.METHODS: The sample was composed of 405 patients treated at the Department of Oral and Maxillofacial Surgery of the Emergency Hospital of Aparecida de Goiânia, Brazil, between 2011 and 2013. The following informations were collected from the patients’ medical records: gender, age, cause of injury, seasonal distribution and type of injury. The statistical treatment analyzed data from frequency distribution and chi-squared test. The level of significance was set at 5% for all analyses.RESULTS: A higher occurrence of maxillofacial injuries was observed in males (72.59%) and with 21-30 years old (26.17%). The main etiologic factors involved were vehicle traffic accidents (30.62%), falls (22.72%) and violence (21.48%). The seasonal distribution showed that most cases occurred in autumn (38.02%), followed by summer (34.07%). The most common injuries were facial fractures (80%), with the nasal bones being the most affected anatomical region (39.75%). Statistically significant associations between etiological factor, gender and age (p<0.005) were observed.CONCLUSION: There was a high number of maxillofacial injuries in males aged less than 30 years old due to vehicle traffic accidents.
Comparative study of adhesive systems applied to different regions of dental substrate
Authors: Camilotti Veridiana , Bosquiroli Virgínia , Dobrovolski Máx , Sinhoretic Mario Alexandre Coelho , Ribeiro Priscilla Busatoa Do Monte , Bertacchinib Lyvia Karla Cerci Ferreira , Mendonça Márcio José 
Published: August 2017

OBJECTIVE: The aim of this study was to evaluate the bond strength (BS) of different self-etching adhesive systems to bovine dentin.METHODS: For this purpose, 50 teeth were flattened with silicon carbide abrasive papers and randomly divided into 5 groups: SB – Single Bond Plus; Group AEO – Adper Easy One; Group ADH – AdheSE; Group ASE – Adper SE Plus and Group Clear – Clear Fill. After adhesive system application, 5 Tygon cylinders (1.8 mm×2 mm) were placed on the vestibular surface of each tooth, filled with resin composite (Filtek Z350) and light activated. Three composite resin cylinders were fabricated for each bovine crown, one being located in the incisal region, one in the middle third and one in the cervical region, totaling 30 composite resin test specimens (TS) for each group. The TS were submitted to the microshear bond strength test in a Universal Test Machine Kratos), at a cross-head speed of 0.5 mm/min.RESULTS: The BS was calculated and analyzed by ANOVA (one-way) and Tukey’s test (p<0.05). The highest BS values were obtained in Group SB and there were no significant differences between the adhesive systems tested in the middle and cervical thirds. In the fracture type analysis it was found that adhesive failure was dominant for all groups.CONCLUSION: The conventional two-step adhesive system SB presented the highest bond strength mean to bovine dentin for all the regions.
Analysis of reasons for retreatment and extraction of endodontically treated teeth: A transversal study
Authors: Souza Matheus Albino , Haas Mariana Peixoto , Franco Natasha Junges , Lângaro Marina , Barbizam João Vicente Baroni , Figueiredo José Antônio Poli 
Published: August 2017

OBJECTIVE: Was to analyze the reasons related to retreatment and extraction of endodontically treated teeth.METHODS: Data were collected consecutively during a 12-month period from data of patients who had indication for root canal retreatment or extraction of endodontically treated teeth after an initial visit. The patients were scheduled for a new consultation and the need for root canal retreatment or extraction was confirmed by three previously calibrated examiners. After that, a clinical form was completed, including data about the patient and tooth, presence of apical radiolucency, reasons for root canal retreatment or extraction, and the treatment option. The aforementioned variables related to the patients and the teeth were computed and are given as their absolute value and percentage.RESULTS: Inadequate filling was the most frequent reason (40.5%) to perform root canal retreatment; non-surgical root canal retreatment was the most frequent treatment option (95%). Failure or fracture on definitive restoration (prosthetic crown) was the most frequent reason (30%) to perform extraction of endodontically treated teeth; tooth extraction with prosthetic rehabilitation was the most frequent treatment option (78%).CONCLUSION: Inadequate filling and failure or fracture on definitive restoration associated with apical radiolucency should be taken into account during the decision-making process regarding endodontically treated teeth with questionable prognosis.
Sodium ascorbate use in bleached teeth
Authors: Ferreira Robson De Sousa , Nascimento Elanno Pádua Albuquerque do 
Published: August 2017

OBJECTIVE: Tooth bleeching is a routine intervention in dental office, to be effective in removing stains and browning that compromise the aesthetics of smile. Sometimes there is a need of complementing with composite restorations, but for the use of these requires a certain waiting time. Thus, use of antioxidants such as sodium ascorbate increases the bond strength values due to removal of residual oxygen hinder polymerization. This study examined the use of sodium ascorbate as measure to allow for immediate adhesive restorations after bleaching procedures in vital teeth.METHODS: For that, they consulted national and international studies published between 1973 and 2015 available in Scielo, VHL and PubMed platforms.CONCLUSION: It can be concluded that sodium ascorbate has clinical relevance, but its use should be performed with caution, necessitating further investigation. The fact that in some studies its application introduced effective can not be attributed to factors inherent in the methodology.
Evaluation of antibacterial activity and acute toxicity of pomegranate (punica granatum l.) seed ethanolic extracts in swiss webster mice
Authors: Setiadhi Riani , Sufiawati Irna , Zakiawati Dewi , Nur’aeny Nanan , Hidayat Wahyu , Firman Dani R. 
Published: August 2017

Objective: To evaluate the safety of a pomegranate seeds ethanolic extract in Swiss Webster mice.Material and Methods: Pomegranate seed’s ethanolic extracts were evaluated for minimum inhibitory concentration against streptococcus sanguis ATCC 10556, using microdilution method through 96-wells microplate. In acute toxicity test, 12 females and 12 males Swiss Webster mice weighing 20–30 grams were divided into four groups, each consisting of 3 females and 3 males. Three groups were orally given of sample with concentrations 0.2% equivalent to 40 mg/kg, 0.4% equivalent to 80 mg/kg, and 0.8% equivalent to 160 mg/kg, while the control group was given distilled water. Observations were made at 30, 60, and 90 minutes, for 24 hours and 7 days.Results: The MIC against Streptococcus sanguis was on 2000 ppm concentration and until 24 hours observation no lethal effect occurred on the mice, but at the 7 days observation in the group of 0.8% per kilogram body weight, the lethal effect occurred at one mice.Conclusion: The ethanolic extract of pomegranate seeds has antibacterial effect and no acute systemic toxicity, which can be considered safe on the use as oral topical solution since the toxic dose is greater than 160 mg/kg of body weight.
The use of maxillary first molar as forensic aid in racial and sexual dimorphism of Kurdish populaton in Sulaimani city
Authors: Ahmed Azhar 
Published: August 2017

Objectives: To find out the utility of using permanent maxillary first molar as a forensic tool for sex determination, and to compare tooth size for both side in the same sex in Kurdish people.
Materials and Methods: The study sample comprised 120 casts of Kurdish peoples (67 females and 53 males) from Sulaimani city - Iraq, with age ranging from 13-33 years. The bucco-lingual (B-L) and mesio-distal (M-D) linear measurements of the maxillary first molars were calculated using digital vernier calipers. Percentage of sexual dimorphism was calculated.
Results: The mean values of B-L and M-D parameters were greater in males than females and greater on right side compared to with left side. The mean values of B-L parameters showed statistically significant differences between males and females with p ˂0.05.The differences in B-L and M-D parameters between the right and the left side were statistically significant in males. Sexual dimorphism amounted to 3.48%, 2.83% for the right and left bucco-lingual diameter respectively as compared to 1%, 0.91 % for right and left mesio-distal diameters of the maxillary first molars respectively.
Conclusion: The result of the study showed that the bucco-lingual diameters of permanent maxillary first molars exhibiting significant sexual dimorphism in Kurdish sample and can be used as adjunct in sex determination.
Comparison of volume loss of tooth structure between traditional and conservative FPD designs
Authors: Al-Zahawi Abdulsalam , Tsitrou Effrosyni , Noort Richard 
Published: August 2017

Objectives: The purpose of this study is to evaluate the amount of tooth structure that is sacrificed with the conventional preparation of a 3-unit bridge and compare this with a variety of more conservative 3-unit bridge designs.
Materials and Methods: Fifty typodont Frasaco teeth were used to prepare five 3-unit FPD preparation designs (25 lower right first premolar teeth and 25 lower right first molar teeth). One conventional full coverage crown retainer, two different innovative partial coverage crown retainer and two different Inlay design retainer. The volume of tooth structure lost was measured for each design and statistically analyzed.
Results: One-way ANOVA with Tukey’s test statistical analysis of the results at (p˂ 0.001), revealed that there was a highly significant effect of the preparation design on the volume loss of tooth structure. Volume tooth structure saved design IV and V was about twice that saved with the partial coverage crown in design II and III.
Conclusion: The amount of tooth structure sacrificed in the proposed conservative FPD designs is significantly less than that calculated for the traditional design.
The prevalence of fracture in acrylic removable dentures in Sulaimani city
Authors: Al-Jmoor Cheman 
Published: August 2017

Objective: The aim of this study was to investigate the prevalence of fractures in Acrylic Removable Dentures in Sulaimani City.
Patients and Methods: A questioner was used to collect the data from two dental laboratories. 264 fracture cases were collected. The variables evaluated were; the fracture area, the possible cause of fracture, fracture frequency, place of denture construction, the age of the denture, and the type of Removable Denture, Partial or Complete Denture.
Results: The data result showed; The ratio of fracture incidence in complete denture to partial denture fracture was nearly 4:1, the ratio of upper to lower denture was 2:1, the most common fractures was midline fracture 112 (42.424%), followed by the De-Bonding of the artificial teeth 62 (23.484%). Dropping was the main possible cause of fracture 66 (25%), followed by poor occlusion 38 (14. 393%). 128 (48.484%) of the denture fractures was first time fracture, 136 (51.515%) of the dentures had repeated fracture. 112 (42.424%) of the fractured dentures were constructed by a technician like people (Dan Saz), 76 (28.787%) were constructed in dental hospital. 58 (21.969%) of the fractured dentures were constructed 1 years ago or less, 146 (55.303%) of the fractured dentures were more than 3 years old.
Conclusion: Midline fracture had the highest rate among all the other types of fractures; fracture of upper denture was more than lower dentures. Dropping followed by the De-bonding of the artificial teeth was the most possible cause of fracture. Fracture rate increased among the dentures which were first constructed by a technician like people (Dan Saz). Fracture frequency increased as the denture age increased, also increased among dentures with repeated fracture.
Prevalence of common white lesions in oral cavity among patients attended School of Dentistry in Sulaimani/ Iraq
Authors: Abd-Sada Akeel 
Published: August 2017

Objectives: This study was conducted to examine the prevalence of common white lesions in the oral cavity.
Patients & Methods: Examination was done for 500 patients visiting dental school, in Sulaimani city, Kurdistan region-Iraq from different age groups and sexes for presences of white lesions. Examination includes the type, site and size of the lesion in oral cavity.
Results: The result showed that about 44.2% (221 patients) had one type of white lesions with male predominance. Candidiasis and hyperkeratosis represented the majority of these cases 54.2% and 38% respectively while leukoplakia represented the less finding in this study (3.6%). According to the age group these lesion were founded in above 50 years patients more than the other groups.
Conclusion: White lesions in oral cavity may be symptomless and can be found by routine oral examination. Early diagnosis may aid in the treatment of these lesions.
Prevalence of cigarette smoking among Sulaimani University students
Authors: Ramzi Zhian 
Published: August 2017

Objectives: The study was carried out to determine the prevalence of cigarette smoking and find out the socio-demographic correlates of smoking among Sulaimani University students.
Subjects and Methods: A cross-sectional study was conducted from October to November 2007 on 2750 students in Sulaimani University. A systematic stratified sampling technique was used. A self-administered questionnaire was used for data collection on age and gender of students, college, years of study, and age of starting smoking.
Results: Out of 2722 respondents, 302 students were smokers giving a prevalence rate of 11.1%. The prevalence of smokers was significantly (P< 0.001) higher in males than females (19% and 1% respectively). The highest rate of smokers was among the age group 23-26 years in both sexes. About 10% of students started smoking at age less than 12 years, 8.2% at age 12-17 years, 50% at 18-22, and 31.7% at 23-26 years.
Conclusion: The prevalence of smoking was moderate. More than half of the students started smoking during their study years in the university. Males and students in third and fourth academic years were more likely to smoke. The results provide baseline data to develop an anti-smoking program to limit smoking in the university.
Prevalence of orofacial changes in patients with β-thalassemia major in Karbala City, Iraq
Authors: Abulsattar Muhanned , Al-Yassiri Ali 
Published: August 2017

Objectives: The aim of this study was to investigate findings of oral abnormalities or changes in these patients, and compare it to healthy control subjects.
Materials and Methods: Patients were selected from Thalassemia Center of Pediatric of Al Hussaini Teaching Hospital in Holy-Karbala during the period from March to September 2013. Forty (40) subjects were incorporated in this study. All these patients with age range (4-15) years, (22 males, and 18 females). All these patients were without any other systemic diseases.
Results: The prevalence of orofacial complications in β-thalassemia major patients was: prominent maxilla (85%), bad oder (80%), oral ulcers (50%), angular stomatitis (40%), candidal infection (35%), changes in oral mucosa (30%), xerostomia (15%), and the last one was enlargements of salivary glands (zero).
Conclusions: Knowing the prevalence of complication can help the dentists to do properly for these patients to solve their problems and improve knowledge of the parents about their children's dental health.
Evaluation of some intracanal irrigants on push-out bond strength and mode of failure of resin and non resin cements to root canal dentin (in vitro comparative study)
Authors: Ibrahim Rawa , Al-Qaisi Salam 
Published: August 2017

Objectives: The purpose of this study was to evaluate the effects of five intracanal irrigants [distilled water, NaOCl, NaOCl + EDTA, ozonated water and NaOCl + ozonated water] on push-out bond strength of (zinc phosphate cement and Calibra® esthetic resin cement) and to determine the mode of failure. Materials and Methods: Seventy extracted single straight rooted teeth were selected. The crowns were sectioned at cemento-enamel junction. The sectioned roots were embedded vertically in clear acrylic resin. The root canals were prepared with K-files and Gates Glidden drills using step-back technique then the specimens were randomly assigned to five main groups according to the types of irrigant used and each main group were divided in to two subgroups and filled with zinc phosphate cement and Calibra® esthetic resin cement. The samples were sectioned horizontally to provide 4 millimeter dentin disc from coronal third of the roots. Each sectioned specimen was tested by using computerized universal testing machine. Finally each de-bonded specimens was examined under stereomicroscope to determine the mode of failure. Results: Two-way ANOVA tests showed that there was statistical significance difference between the two type of cement used in this study, also there was statistical significance difference between the types of irrigant; while the interaction between types of cement with types of irrigant was not statistically significant. Considering the dentine surface treatment, Paired T-test showed that irrigation with 5.25% NaOCl produce statistically significant reduction in bond strength to root canal dentin in comparison to control group, while irrigation with distilled water, 5.25 NaOCl plus 17% EDTA, 5.25% NaOCl plus 5gm/L ozonated water, 5gm/L ozonated water alone had no statistical significant affect on bond strength to root canal dentin. Comparing the cements, zinc Phosphate cement showed higher bond strength in comparison to Calibra® esthetic resin cement. Conclusions: NaOCl have negative effect on bond strength to root canal dentin, while distilled water, NaOCl plus EDTA, ozonated water alone or after NaOCl had no effect. Zinc phosphate cement had higher bond strength than Calibra® esthetic resin cement. The adhesive and mixed failures were higher than the cohesive failure for all groups in general.
The prevalence and etiology of maxillary midline diastema among orthodontic patients attending Shorsh Dental Clinic in Sulaimani City
Authors: Talabani Ranjdar , Ahmad Shawbo , Noori Arass 
Published: August 2017

Objectives: The purposes of this study were to determine the prevalence of MMD among Shorish dental clinic`s patients seeking orthodontic treatment and to find the factors associated with this anomaly.
Materials and Methods: During 6 months, 507 patients with age (13 – 40) years old attending Shorish Dental Clinic, seeking orthodontic treatment were screened to find the prevalence and etiology of MMD.
Result: The MMD was present in 110 patients (21.7%). The frequency of MMD was the same in males and females. It is highest in the young age group and lowest in the older age group (29% vs. 4%).
Conclusion: The most frequent factor among the observed etiological factors was oral unhealthy habit which was found in 40% of MMD patients and 8.7% of all cases.