📌 POINTS TO PONDER

🔹Father of Resective Osseous Surgery : Schluger

🔹Resective osseous surgery is the most predictable pocket reduction technique.

🔹Spheroiding or parabolizing: It is the removal of supporting bone to produce a positive gingival and osseous architecture.

🔹Scribing: It is the technique by which high-speed rotary instruments are used to outline the radicular bone, which is to be removed by hand instrumentation.

🔹Widow’s peaks: Schluger in 1949 described widow’s peaks as the residual pieces of cortical bone left over facial or lingual line angle from the horizontal grooving that form a crater in a mesiodistal direction. They will not be absorbed and will result in immediate postoperative tissue pocketing. Hand instrumentation with Ochsenbein chisel is used to eliminate widow’s peak.

📌 MULTIPLE CHOICE QUESTIONS MCQs

💡Radicular blending is a ___________ procedure:

A. Osteoplasty 

B. Ostectomy

C. A and B 

D. None of the above

Answer : A

💡The level of interdental bone is more apical to radicular bone in:

A. Negative architecture

B. Positive architecture

C. Flat architecture 

D. Ideal architecture

Answer : A

💡The most predictable pocket reduction technique:

A. Regenerative osseous surgery

B. Resective osseous surgery

C. Gingivectomy

D. Modified widman flap

Answer : B

💡Sequence of resective osseous surgery is:

A. Vertical grooving, flattening interproximal bone, radicular blending and gradualizing marginal bone.

B. Radicular blending, vertical grooving, flattening interproximal bone and gradualizing marginal bone.

C. Vertical grooving, radicular blending, flattening interproximal bone and gradualizing marginal one

D. None of the above

Answer : C

💡Instruments used in resective osseous surgery are except:

A. Friedman and Blumenthal rongeurs

B. Schluger and sugarman files

C. Back action and Ochsenbein chisels

D. Kirkland and Orbans knife

Answer : D

📌 VIVA VOCE

Q1. What are the endpoints of osseous resective surgery?

Ans. The endpoints of osseous resective surgery are minimal probing depths and a gingival tissue morphology that enhances good self-performed oral hygiene and periodontal health.

Q2. What are widow’s peaks?

Ans. Schluger, in 1949, described widow’s peaks as the residual pieces of cortical bone left over facial or lingual line angle from the horizontal grooving that form a crater in a mesiodistal direction.

They will not be absorbed and will result in immediate postoperative tissue pocketing. Hand instrumentation with Ochsenbein chisel is used to eliminate widow’s peak.

Q3. Which is the most predictable pocket reduction technique?

Ans. Resective osseous surgery is the most predictable pocket reduction technique.

Q4. What is ramping?

Ans. If one-walled defects occur next to an edentulous space, the edentulous ridge is reduced to the level of osseous defect, and this is called ramping.

Q5. What are the major contraindications for vertical grooving?

Ans. Close root proximity or thin alveolar housing.

Q6. Who is considered to be the “Father of Resective Osseous Surgery”?

Ans. Schluger

Q7. What is an ideal architecture? 

Ans. The bone level is more coronal in the interproximal areas, with a gradual slope around and away from the tooth.

Q8. How much time it takes for the periodontal ligament to be restored after resective osseous surgery? 

Ans. Four weeks.

Q9. What are the indications of ostectomy?

Ans. Crown lengthening; exposure of sound dentin apical to caries or fractures and opening of interradicular spaces for the treatment of furcation involvement.

Q10. Which instruments are used in resective osseous surgery?

Ans. Rongeurs: Blumenthal rongeur and Friedman rongeur; 

Files: Sugarman file and Schluger file; 

Chisels: Rhodes back action chisel and Ochsenbein chisel and

Burs: Carbide and diamond burs.