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Article
The course and the branches of the greater palatine nerve on the inferior surface of the hard palate

Authors: Ayad A Al–Saraj --- Abid Al–Jabbar Y Al–Hubity
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2003 Volume: 3 Issue: 1 Pages: 27-30
Publisher: Mosul University جامعة الموصل

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Abstract

The both sides of twenty seven adult human cadavers were dissected to know the course and branches of the greater palatine nerve. The results showed that the most common course (81.5%) of the nerve when it was emerged from the greater palatine nerve between the 2nd and 3rd molar teeth about 1 cm superior to the margin of the palatine gingiva; and in 75.9% cases the nerve was seen divided into large medial and small lateral branches. The bony palate examination of both sides of twenty three adult dried human skulls showed two grooves on the inferior surface of the palate, and these grooves were converted into unilateral (26.1%) and bilateral (13.2%) bony canal. The present study also noticed a unilateral spine between the grooves in 34.8% of cases and bilateral spine in 17.4% cases of the examined skulls. It is concluded that the dentist has to take these anatomical notes with consider to obtain a successful injection for greater palatine nerve block.


Article
Effect of smoking on hard palate bone density
تأثير التدخين على كثافة عظم الحنك الصلب

Author: Zahraa M. Al- Fadily
Journal: journal of kerbala university مجلة جامعة كربلاء ISSN: 18130410 Year: 2016 Volume: 14 Issue: 1 Pages: 112-119
Publisher: Kerbala University جامعة كربلاء

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Abstract

Background: The bone density of hard palate is key factor for success of palatal mini-implant. Smoking is an important determinant of osteoporosis.Materials and method: Sixty males were selected with age range 20-39 years and divided into two groups according to smoking; smokers group (30), and nonsmokers (control) group (30). The measurements of hard palate bone density by HU (unit used to measure radiodensity of bone on CT scan) were made at 20 sites at the intersection of five anterioposterior and four mediolateral reference lines using Philips, Brilliancetm, 64-multislice computed tomography scanner software.Results: The results that were obtained showed that there was a statistically significant difference between the two groups in bone density at most areas of hard palate. The comparison between the two groups in the overall cortical bone density showed a highly statistically significant difference. The comparison between the two groups in the overall cancellous bone density showed a statistically significant difference.Conclusion: Hard palate bone density decreased by smoking. In spite that, orthodontic mini-implants can be safely used for smoker persons in hard palate.

الخلفية: كثافة عظم الحنك الصلب عامل مهم لنجاح الزرعات التقويمية الحنكية. التدخين مسبب رئيسي لهشاشة العظام.المواد والادوات: شملت العينة 60 ذكر تتراوح أعمارهم بين٢٠- 3٩ سنة. قسمت العينة الى مجموعتين, المدخنين (30) وغير المدخنين (30). كثافة عظم الحنك الصلب قيست ل٢٠ موقع عند تقاطع خمس خطوط إشارة أمامية خلفية مع أربع خطوط إشارة قريبة بأستخدام برامجيات المفراس الحلزوني ٦٤- متعدد المقاطع لشركة فلبس المتألقة. النتائج: النتائج أظهرت أن هنالك فروق ذات دلالة إحصائية في كثافة عظم الحنك الصلب بين المدخنين وغير المدخنين في معظم المناطق. مقارنة كثافة العظم القشري الكلية بين المجموعتين بينت فروق ذات دلالة إحصائية عالية . مقارنة كثافة العظم الإسفنجي الكلية بين المجموعتين بينت فروق ذات دلالة إحصائية. الاستنتاج: كثافة عظم الحنك الصلب تتناقص بالتدخين. بالرغم من ذلك, الزرعات التقويمية من الممكن وضعها للمدخنين في عظم الحنك الصلب.


Article
Hard palate bone density and thickness determination using CT scan and their relationships with body compositions measured by bioelectrical impedance analysis for Iraqi adult sample

Authors: Zahraa M. Al- Fadily --- Hadeel A. Al- Hashimi
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2015 Volume: 27 Issue: 2 Pages: 163-172
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: This study was conducted to evaluate the hard palate bone density and thickness during 3rd and 4thdecades and their relationships with body mass index (BMI) and compositions, to allow more accurate mini-implantplacement.Materials and method: Computed tomographic (CT) images were obtained for 60 patients (30 males and 30females) with age range 20-39 years. The hard palate bone density and thickness were measured at 20 sites at theintersection of five anterioposterior and four mediolateral reference lines with 6 and 3 mm intervals from incisiveforamen and mid-palatal suture respectively. Diagnostic scale operates according to the bioelectric impedanceanalysis principle was used to measure body weight; percentages of body fat, water, and muscle; bone mass; andbasal and active metabolic rates.Results: No significant difference in overall bone density and thickness of hard palate during 3rd and 4th decades. Thegender should be considered in regard to bone thickness. Cortical bone density and thickness showed a tendencyto decrease posteriorly, while the cancellous bone density showed a tendency to increase posteriorly. In themediolateral areas, no specific patterns were observed. With increasing BMI, the cortical bone density wasincreased. The relationships of bone density and thickness with most scale measurements were not significant.Conclusion: Mini-implants for orthodontic anchorage can be effectively placed in most areas of hard palateregarding the bone density. While regarding bone thickness, care should be taken during the planning of theirplacement in hard palate. A new classification for bone thickness of hard palate has been developed

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