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Article
Correlation of the maxillary sinus with the craniofacial dimensions in different age groups (A study on digital lateral cephalometric radiographs of males in Mosul city

Authors: Mustafa M. Hamed --- Khidhair A Al–Jumaili
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2011 Volume: 11 Issue: 3 Pages: 160-168
Publisher: Mosul University جامعة الموصل

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Abstract

Aims: This study aimed to detect if there are a correlation between the maxillary sinus measurements ( height and depth) with the cranial and facial structures that probably could estimate a functional matrix rule of the maxillary sinus in the growth of these structure add to estimate the percent of increase from age group to another. Materials and Methods: A digital lateral cephalometric radiographs of 113 males with class I malocclusion from Mosul city were divided into three age groups: 14 patients Preadolescent (6-9 years), 70 patients adolescent (11-15 years) and 29 patients adult (17-42 years) with measurements taken involving the maxillary sinus height and depth, maxillary length, mandibular lengths, anterior facial height(upper and lower parts), posterior facial height (upper and lower part), cranial base dimensions then a correlation have been down between the maxillary sinus height and depth with the related dimensions of the craniofacial complex. Results: The correlation between the MSH and the related craniofacial dimensions in the three age groups showed a significantly positive correlations in nearly all of the measurement specially at adolescences and adults with just two significant positive correlations for MRL and TPFH in preadolescence, on the other hand correlating the MSH with the related measurement in general in single group showed a positive significant correlation for all measurement. While correlating the MSD with the related craniofacial dimensions showed a significantly positive correlation with MBL, TML and Nba in adult. For MBL and TML in preadolescence, but no significant correlation showed in adolescence, with a significant correlation for MSD with nearly all the related craniofacial dimensions in all age group in general. In all measurement the percentage of increase from preadolescence to adolescence more than that from adolescence to adult. Conclusions: we could concluded that in the three age groups the growth of the maxillary sinus probably may influence the related craniofacial structures as a functional matrix role in the growth mechanism


Article
The form of upper dental arch for Mosuli adults ( A computerized study)

Authors: Khidhair A Al–Jumaili --- Ne’am F Al–Obaidi
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2011 Volume: 11 Issue: 3 Pages: 169-177
Publisher: Mosul University جامعة الموصل

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Abstract

Aims: To find out the most frequent dental arch form in Mosuli adults. Establishment of the normative values of the upper dental arch dimensions. Materials and Methods: The sample of this study involved students from Mosul University, 95 students (58 females, 37 males) were selected. The age of the sample ranged between 18–25 years old. They were normal healthy individuals of Mosul origin. Full complement of permanent dentition, bilateral Class I molar and canine occlusion. The data recorded in this research were subjected to computerized statistical analysis using SPSS programs, including descriptive statistics (mean, standard deviation, minimum, maximum), Student’s t–test was applied to test the significant differences between the genders. Results: There were highly significant differences between males and females of the vertical measurements, that males had larger arch length than females. Also, males had larger arch width with a highly significant difference at p < 0.01 in all width dimensions in maxillary arches. It could be noticed that the most prevalent arch form among the sample was the Mid form followed by the Narrow and Wide then flat & pointed forms. Conclusions: The mid arch form is the most frequent arch form followed by other types. All the measured dimensions (width and length) have significantly greater mean value in males than in females with significant difference for linear measurements. no significant difference in ratio between genders


Article
Assessment of KÖle analysis (Yuinzing modification) in Mosul city (a cephalometric study)

Authors: Younis MS Hasan --- Ahmad A Abdulmawjood --- Khidhair A Al–Jumaili
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2011 Volume: 11 Issue: 3 Pages: 199-206
Publisher: Mosul University جامعة الموصل

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Abstract

Aims: The aim of this study is to assess Köle analysis (Tuinzing modification) for determining the possible positions of chin (soft and hard tissue) in skeletal Cl.I, Cl.II and Cl. III type of malocclusion of adult age group and for both genders. Materials and Methods: The study was carried out on the lateral cephalometric radiograph of (118) subjects of adult age group (18-25) years old; Cl I type (28 male and 19 female), Cl II type (19 male and 17 female) and Cl III type (18 male and female 17). SNA, SNB and ANB were used to estimate the type of skeletal malocclusion. For the analysis, 2 lines perpendicular to SN line are drawn touching the most anterior point of the upper lip-Ls (upper lip plane) and one from the infra orbital point-Or (orbital plane). The position of the chin points (hard and soft tissue) were assessed via determining the position of (Pog and Pg) respectively in relation to these two vertical planes using five scores: Score 1: give to the chin point that situated posterior to orbital plane. Score 2: give to the chin point that situated in a touch with orbital plane. Score 3: give to the chin point that situated in between orbital plane and upper lip plane. Score 4: give to the chin point that situated in a touch with upper lip plane. Score 5: give to the chin point that situated anterior to the upper lip plane. Results: The positions of Pog and Pg: Cl I mainly at score (2 and 3) respectively, Cl II mainly at score (1and 2) respectively and Cl III type Pog gave rise to slight increase of score (3 than 2) while Pg gave rise to slight increase of score (3 than 5) with no significant difference between genders for all classes. Conclusions: Köle analysis (Tuinzing modification) may be valuable for determining chin (soft and hard tissues) of Cl I, Cl II and Cl III types of malocclusion of adult age group and for both genders


Article
Laser versus conventional acid etching technique on bond strength on orthodontic brackets (An in vitro study)

Authors: Zaid A Ibrahim --- Abdul– Rahman I Ali --- Khidhair A Al–Jumaili
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2011 Volume: 11 Issue: 3 Pages: 124-130
Publisher: Mosul University جامعة الموصل

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Abstract

Aims: This in vitro study was undertaken to evaluate and compare the effect of acid etching and/or diode laser (1064 nm) irradiation on shear bond strength of orthodontic brackets. Materials and Methods: Thirty freshly extracted human premolars were included in this study. Laser irradiation was done by using the new 1064 nm diode laser with output power of 2.5 Watt in continues mode, also use stainless steel orthodontic brackets (Roth, 22–slot size), and use orthodontic flowable composite resin which needs no bonding fluid. The 30 human teeth were divided into 3 groups (each group consist of 10 teeth): Group A–use acid etching (37% phosphoric acid) for 1 minute to bond bracket to tooth surface (control group), group B–use laser irradiation for 30 seconds with Indian ink (coated on teeth). Group C–use laser irradiation for 30 seconds with Indian ink after that use acid etching for 1 minute. Shear bond strength measured by using unconfined shear testing machine at a cross head speed of 5 mm/min. Results: The shear bond strength means were as follows: Group A: 11.27 MPa, group B: 6.21 MPa, group C: 14.04 MPa. The acid etching after 1064 nm diode laser irradiation (group C) has significantly higher bond strength (p 0.05) than remaining groups. In group B, orthodontic brackets had significantly lower shear bond strength (p 0.05) than remaining groups. Conclusions: These results indicate that acid etching after laser irradiation enhances and improves the bonding of orthodontic composite resin to human enamel. In the same time 1064 nm diode laser irradiation with ink coating is not consider as a replacement to acid etching in bonding of orthodontic brackets to human enamel


Article
Evaluation of calcium hydroxide apexification in immature permanent incisors

Authors: Aisha A Qasim --- Baydaa AO Al–Rawi --- Khidhair A Al–Jumaili
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2011 Volume: 11 Issue: 3 Pages: 144-149
Publisher: Mosul University جامعة الموصل

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Abstract

Aims of the Study: The aim of the present study is to identify the effectiveness of tgpaste of calcium hydroxide with barium sulfate in inducing a calcified apical barrier of an incompletely formed root in necrotic permanent incisors of children. Materials and Methods: Twenty children with twenty teeth with pulpal necrotic and an incompletely formed apex were included in this study. Working length determination, instrumentation, irrigation and dryness were carried out for the root canals then paste of non setting calcium hydroxide injected inside the canal and after each 3 months the patients were recalled to check the calcified apical barrier formation. Results: The average age of patients was years. The mean duration for apical barrier formation was 6.813+1.1 months (range 6–12 months). Discussion: The use of calcium hydroxide in apical barrier formation has shown promising results. Because of its enhanced success rate, easy availability for clinician and affordability for patients, it has gained widest acceptance all around the world. Conclusions: It is generally agreed that calcium hydroxide is the major ingredient responsible for stimulating the desired calcific closure of the apical area of non–vital immature permanent incisors


Article
Dental caries experience , prevalence and severity in 13-15 years old students in Mosul city center

Authors: Karam H Jazrawi --- Rayia J Al–Naimi --- Khidhair A Al–Jumaili
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2011 Volume: 11 Issue: 3 Pages: 184-192
Publisher: Mosul University جامعة الموصل

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Abstract

The aims of the present study is to determine dental caries experience, prevalence and severity in a group of 13–15 years olds. Materials and Methods: A random sample of 516 intermediate school students were examined and dental caries was recorded by DMFT values. Also, the significant caries index, care and treatment need indices were used. Results: Mean DMFT values for the total sample was 5.17 with a statistically significant age difference, females tended to have more caries than males with significant gender difference. The significant caries index was 7.98, care index which shows the restorative care was 10.39. Discussion: There has been an increase in dental caries prevalence and severity in Mosul compared with a previous study that was undertaken during the United Nations’ sanctions on Iraq, due to the availability and relative cheapness of sugars and confectionaries after 2003. Conclusions: To improve children’s oral health, community school–based oral health educational programs should be established starting from primary and extending to intermediate schools, stressing on sugar restriction and oral hygiene measures, fissure sealants and fluorides can also be used effectively

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