🌟 PERIODONTICS-ORAL SURGERY RELATIONSHIP
📌 POINTS TO PONDER
🔹Teeth should be extracted in an atraumatic manner to conserve alveolar bone.
🔹 Clinicians should avoid applying pressure at the crest of the socket to compress the rim of the alveolar bone as it results in the collapse of the remaining buccal plate of the bone and also hastens the formation of a deformity within the ridge.
📣 We can divide the perio-oral surgery relationship into two main headings:
🔸Inadvertent injury to periodontium during oral surgical procedures
🔸Spread of infection during oral surgical procedures
📣 The most common oral surgical procedures that can cause inadvertent injury to periodontium include:
🔸Removal of an impacted tooth.
🔸Fixation of maxillomandibular fixation (MMF) apparatus on the teeth.
📌 VIVA VOCE
Q1. Why mouth preparation is done before general inhalational anaesthesia?
Ans. Plaque control and professional instrumentation aid in reducing the oral bacteria count. As the mouth is an entrance to the respiratory chamber, the possibility always exists that debris and fluids may be inhaled from the mouth during the administration of an anaesthetic.
Q2. Which oral surgical procedures can cause inadvertent injury to periodontium?
Ans. Removal of an impacted tooth and fixation of maxillo-mandibular fixation apparatus.
Q3. What is the greatest periodontal hazard related to extraction of impacted third molar?
Ans. Development of distal pocket on the second molar.
Q4. In which kind of impactions, operculectomy is indicated?
Ans. In soft tissue impactions where there is no hindrance in eruption of the tooth either from adjacent bone or tooth.
Q5. What is the main disadvantage related to prolonged Maxillomandibular Fixation (MMF)?
Ans. Prolonged MMF leads to poor oral hygiene status.
Q6. Which are possible structures that can be injured during the surgical procedures in the maxillofacial region?
Ans. Gingiva, periodontium and alveolar bone.
Q7. What is the length of the screws that are used for MMF?
Ans. 18–20 mm long screws are used in the maxilla; while 20 mm long screws are chosen for the mandible.
Q8. In case of multiple extractions, which teeth should be extracted first?
Ans. First maxillary then mandibular.
Q9. What is the main indication of operculectomy?
Ans. Soft tissue impactions.
Q10. Why is oral prophylaxis done before the extraction of the involved tooth?
Ans. So that debris from the extracted tooth should not contaminate the surgical area.