Retention of complete denture depends on-
সঠিক উত্তর
সঠিক উত্তর: Adhesion and cohesion
সঠিক উত্তর
সঠিক উত্তর: Adhesion and cohesion
ভুল বা সঠিক হলে সাথে সাথেই ব্যাখ্যা সহ উত্তর দেখতে পারবেন।
Ideal age of interceptive orthodontics is -
Interceptive orthodontics aims to intercept and correct a developing malocclusion at an early stage, before it becomes fully established. This window corresponds to the mixed dentition period (roughly 6–12 years), when both primary and permanent teeth are present. During this period, problems such as crossbites, crowding, habits (thumb sucking), and arch-length discrepancies can be corrected more easily because the jaws are still growing and teeth are still erupting, making treatment simpler and more effective than after the permanent dentition is fully established.
Reference: Proffit WR, Fields HW, Sarver DM. Contemporary Orthodontics, 6th ed. Chapter on Early Treatment (Interceptive Orthodontics).
মেডিকেল বিষয়ে ১০ টি গুরুত্বপূর্ণ প্রশ্ন
১০ মার্কের MCQ কুইজএই প্রশ্নের বিশেষজ্ঞ বিশ্লেষণ
Retention of a complete denture — its resistance to displacement away from the supporting tissues — is a multifactorial phenomenon that primarily depends on physical forces including adhesion (attraction between the saliva film and both the denture base and the mucosa) and cohesion (the attraction between the saliva molecules themselves), which together create a thin fluid film and interfacial surface tension holding the denture in place, along with atmospheric pressure and peripheral seal. Occlusion affects denture stability during function, not primary retention.
Reference: Zarb GA, Bolender CL. Prosthodontic Treatment for Edentulous Patients, 13th ed. – Physical Factors in Denture Retention.
রেফারেন্স মাত্র
মেডিকেল বিষয়ের আরও প্রশ্ন