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URI الجديد لهذه الكائناتhttps://ksu.otcloud.co.ke/handle/ksu-press/639
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مقالة وصول حر A Rare Case of a Large Plunging Ranula with Cervical Extension: Imaging, Diagnosis, and Management(دار جامعة الملك سعود للنشر, 01/01/2010) Ra-ed Al-SadhanKeywords: Ranula, Sublingual salivary gland, Neck masses.
Abstract. A plunging ranula is a mucous extravasation cyst appearing as a swelling in the submental and
submandibular regions. We describe a rare case of massive deep diving cervical ranula involving multiple tissue
spaces and extending to the upper mediastinum. The unusual course of events following surgical excision of the
submandibular gland is presented. A Computerized Tomography (CT) scan revealed the true extent of the lesion
and its relationship to the surrounding structures. Other imaging techniques and diagnostic tests are discussed and
relevant literature is reviewed.مقالة وصول حر Dental Caries in Saudi Cleft Lip and Palate Patients Attending a Teaching Dental Institution(دار جامعة الملك سعود للنشر, 01/01/2010) Abdullah M. AldreesKeywords: Cleft lip, Cleft palate, Dental caries, Oral hygiene, Saudi.
Abstract. The aim of this study was to investigate the dental caries experience in a group of patients with cleft
lip/palate (CLP) in Riyadh, Saudi Arabia. A retrospective study was designed to review the dental files of all CLP
patients referred to the College of Dentistry, King Saud University (KSU) between 1999 and 2006. Data including:
demographic information, type of dentition, attendance to the CLP clinic, oral hygiene, treatment setting used, and
caries status were recorded for each patient. A total of 165 dental files of cleft affected patients (108 male, 57
female) were included in the study. Only 21.2% of the patients were first seen before the age of 6 years. The
majority of the patients (61.8%) had poor oral hygiene, and about 50% of the patients did not regularly attend to
the dental clinic. Primary teeth were more carious (55.4%) than the permanent teeth (41.2%). The results of this
study show that: Patients affected with CLP treated at KSU had a high level of dental caries experience, and twothirds
of them had poor oral hygiene.مقالة وصول حر The Effect of Different Types of Gloves on the Setting Time of Polyvinylsiloxane (PVS) Putty Impresion Materials(دار جامعة الملك سعود للنشر, 01/01/2010) Mohammed Q. Al-Qahtani; Abed S. Al-Jabab; Ibrahim M. Al-MotlaqKeywords: Setting time, Putty material, Polyvinylsiloxane, Vinyl gloves, Latex gloves.
Abstract. The purpose of this study was to evaluate the effect of different types of gloves on the setting time of
two brands of polyvinylsiloxane putty impression materials.
Seven brands of gloves (Vitex, LEG, LG, Proguard, NRL, Modern and Peha-Taft) were used for mixing
two brands of polyvinylsiloxane putty impression materials (President and Reprosil). The setting times of these
two putties were tested and compared to control group (mixing with washed ungloved hand). The setting times of
putties were tested using a machine called “Oscillating Rheometer”. The putties were mixed according to the
manufacturer's recommendation and then placed under the arm of the Oscillating Rheometer to record the setting
time of the putty materials. The machine was adapted to let the material set at 37ºC temperature (oral temperature).
After every trial the machine was cleaned well. Hands were washed thoroughly with water and dried well with
paper towel. Every recording was reposted in special table. The maximum time to allow the material to set was 15
minutes (900 seconds).
The vinyl gloves tested had no effect on the setting time of President and Reprosil putties. Some brands of
latex gloves caused severe retardation or complete inhibition on the setting process of the tested impression
materials.مقالة وصول حر In vitro Evaluation of Microleakage in Contaminated Fissures Sealed with GC Fuji Triage Glass Ionomer Cement(دار جامعة الملك سعود للنشر, 01/01/2010) Asma Al-JobairAbstract. The aim of this in vitro study was to evaluate the microleakage of Fuji Triage glass ionomer in
contaminated pits and fissures, and to compare it with the microleakage of resin-based pit and fissure sealant.
Sixty-four extracted human premolar teeth were randomly assigned into two main groups according to the fissure
sealant used (Fuji Triage or ClinproTM). Each group was divided into four subgroups according to the different
surface conditions as follows: (1= dry condition; 2= water contamination; 3= saliva contamination; 4= saliva
contamination and air-drying). The teeth were subjected to thermal cycling (500 cycles at 5oC-55oC) with a dwell
time of 30 seconds. The teeth were then immersed in 1% methylene blue for 24 hours, embedded in acrylic resin
and sectioned longitudinally in a buccolingual direction. The sections were analyzed for microleakage using a
stereomicroscope. Microleakage was evaluated on a three-point rating scale and was analyzed using t and
ANOVA tests. Both materials, under different conditions, exhibited dye penetration to some extent. However, Fuji
Triage cement showed less microleakage in wet conditions compared to ClinproTM group. Whenever wet (water or
saliva) contamination is apparent, the use of Fuji Triage cement as a sealing material would be beneficial to
decrease microleakage.مقالة وصول حر A Comparative Orthognathic Cephalometric Study Among Saudi, African-American and Japanese Adults: Hard Tissue Measurements(دار جامعة الملك سعود للنشر, 01/01/2010) Laila F. Baidas; Sahar F. Al-BarakatiKeywords: Burstone analysis, Hard-tissue measurements, Orthognathic surgery, Saudi adult, Black American
adult, Japanese adult, Comparison, Ethnic difference.
Abstract. The purpose of the present investigation was to compare hard tissue analysis obtained from Saudi adults
with reference data of Japanese and African-American adults in order to determine the differences of the hard
tissue analysis between different ethnic groups. Sixty-two lateral cephalometric radiographs were collected from
the archives of cephalometric radiograph files taken by dental students of King Saud University, College of
Dentistry (31 females and 31 males), age range was 22-24 years. The lateral cephalometric radiographs were
analyzed and the mean values of hard and dental measurement were compared with those of African-American
adults, and the Japanese adults. The results showed Saudi males compared to Black had significantly: increased
anterior cranial base, and reduced posterior cranial base, reduced facial convexity, maxillary protrusion, and
maxillary length. Saudi adult females had smaller upper posterior facial height and lower anterior facial height,
downward tipping of maxilla, smaller vertical dental heights, reduced total mandibular body length, and less
proclination of lower incisors. Saudi adults compared to Japanese had significantly: increased anterior cranial
base, reduced posterior cranial base, prognathic maxilla, prominent chin, smaller vertical lower dental heights,
smaller ramus and obtuse gonial angle in males, less proclination of upper and lower incisors, and less steep
occlusal plane to horizontal plane.
This study may be useful in providing racially specific cephalometric values for diagnosis and treatment
planning for orthognathic surgery of Saudi adults. It might represent true differences in skeletal and dental features
between the three racial groups.مقالة وصول حر Timing and Frequency of Lip, Palate and Bone Graft Surgeries in Saudi Cleft Patients(دار جامعة الملك سعود للنشر, 01/01/2010) Khalid M. Al-BalkhiKeywords: Cleft, Lip, Palate, Patients, Repair, Surgeries, Saudi.
Abstract. The study sample consisted of 76 cleft lip and palate (CLP) patients. Age, gender, region of residency,
information related to the different types of CLP surgical repairs were investigated. The results showed that
patients' age range was 5-37, with an average of 16.2 ± 5.3 years. Males 61.8% were more than female 38.2%
(P=0.007). The majority 84.2% of patients were from the central region (P=0.000). The majority of lip repairs
74.4%, and palatal repairs 61.5% were performed within the professional recommended age of 3-6 months and 1-2
years respectively (P=0.000). The timing of alveolar bone graft showed a wide age variability. The majority 75.0%
of lip repairs was done once (P-0.000), 18.4% were done twice, and 1.3% were done three times. The majority
67.1% of palatal repairs were done at least twice. 43.3% were done once, 23.7% were done twice, 7.9% were done
three times and 2.6% were done four times. The majority (81.5%) of bone graft surgeries were done once
(P=0.000). Satisfaction of the surgical results with no need for further revisions were 65.8% for lip, 70.9% for
palatal and 86.8% for bone graft surgeries.مقالة وصول حر Prediction of Mandibular Growth Potential Using Cervical Vertebral Bone Age in Saudi Subjects(دار جامعة الملك سعود للنشر, 01/01/2010) Adel M. AlhadlaqKeywords: Mandibular growth potential, Cervical vertebral bone age, Growth modification, Saudi, Prediction.
Abstract. Assessment of mandibular growth potential is an essential component of proper diagnosis and treatment
planning in orthodontics. The aim of this study was to evaluate the possibility of utilizing the cervical vertebral
bone age method to predict the mandibular growth potential in a group of growing Saudi individuals. The sample
consisted of the lateral cephalometric radiographs of untreated 84 Saudi subjects (33 male and 51 female) with
class I skeletal relationship. The subjects were divided based on the gender and chronological age into four groups:
young male (n = 15, 10.06 ± 0.25 years), young female group (n = 30, 12 ± 1.58 years), adult male (n =18, 21.29 ±
3.42 years), and adult female (n =21, 21 ± 3.15 years). The mandibular growth potential in each young subject was
calculated using an established cervical vertebral bone age method. No significant difference (p<0.05) was found
between the mandibular length value predicted by the cervical vertebral bone age and the actual mandibular length
in the adult group for both genders. The findings of this study demonstrate the validity and accuracy of the cervical
vertebral bone age method in predicting the mandibular growth potential in growing Saudi subjects and can be
found clinically useful during treatment planning for jaw growth modification therapy.