Dentistry students

Part 1✅✅

هسه نجي ع Typ 🟠Type A (most favorable) 1. Anterior labial and posterior buccal vestibular depth that resists vertical and horizontal movement of the denture base. 2. Palatal morphology resists vertical and horizontal movement of the denture base. 3. Sufficient tuberosity definition to resist vertical and horizontal movement of the denture base. 4. Hamular notch is well defined to establish the posterior extension of the denture base. 5. Absence of tori or exostoses. Typ 1 كلشي برفكت اركز ع 4 اشياء Palate Vestibule Tori Tuberosity

🔶Residual ridge morphology-maxilla only: Residual ridge morphology is the most objective criterion for the maxilla يعتبر قياس الامثل لان قياس الاشعه غير موثوق

A measurement is made and the patient is classified as follow بعد ما قست اجي اصنف البيشنت 🟠Type I (most favourable): residual bone height of 21mm or greater measured at the least vertical height of the mandible. 🟠Type II: residual bone height of 16 to 20 mm measured at the least vertical height of the mandible. 🟠Type III: residual alveolar bone height of 11 to 15mm measured at the least vertical height of the mandible. 🟠Type lV: residual vertical bone height of 10 mm or less measured at the least vertical height of the mandible. الارقام ركزو عليهم ✅

🔶The results of a radiographic survey of residual bone height measurement are affected by the variation in the radiographic techniques and magnification of panoramic machines of different manufacturers. minimize variability in radiographic techniques, the measurement should be made on the radiograph at that portion of the mandible of the least vertical height 🔶يكلي هنا اختلاف اشعات الي اخذهم ما ينطي قياس مضبوط لاختلاف تكنيكات الإشعاعية حتى اقلل الاختلاف (التباين )يجب إجراء القياس على التصوير الشعاعي في هذا الجزء من الفك السفلي لأقل ارتفاع عمودي

🔶Bone height – mandible only تحديد وقياس ارتفاع العظام المتبقية هو المعيار الموضوعي الأكثر سهولة من أجل سلسلة من الأسنان الفكية. The continued decrease in bone volume affects: نقصان حجم العظم • شنـُو໑ ياثر 1. Denture-bearing area. اكيد تحمل الدنجر 2. Tissues remaining for reconstruction. الانسجه هم تاثر 3. Facial muscle support/attachment. والعضلات 4. Total facial height. ارتفاع الوجه ملامح الوجه اذا جان العظم ارتفاعه جيد ارتفاع راح يكون طبيعي والعكس 5. Ridge morphology.

مابيه شي هاي صفحه واضحه 🟠class l ➡️idal 🟠class ll➡️moderate 🟠class lll➡️substantially 🟠class iv➡️severely

🔶The diagnostic criteria used in the classification system are: 🔴هاي تقسيمات مهمه راح نشرح كل نقطه وحده 1. Bone height-mandible.ارتفاع العظم الماندبل 2. Maxillomandibular relationship.علاقة بين الفكين 3. Residual ridge morphology-maxilla.واضحه 4. Muscle attachments-mandible.اتصال عضلات

🔶Diagnostic Criteria The diagnostic criteria are organized by their objective nature and not in their rank of significance. اخلي ابالي انو اهداف الي اريده احققه بغض النظر عن التوقعات

🔶Development of the classification system هاي الانظمه تطورت وقسمو بس ع اي اساس قسموها ؟ اعتمادا ⬇️⬇️ 1. Physical findings. 2. Prosthetic history. 3. Pharmaceutical history. 4. Systemic disease evaluation.