Minor Oral Surgery and Surgical Support

Minor Oral Surgery and Surgical Support

Introduction to Oral Surgery

Minor oral surgery is a specialized field within dentistry that encompasses the surgical removal of teeth, the management of oral pathology, and the preparation of the mouth for prostheses. The role of the dental nurse in these procedures is critical for maintaining a sterile operating field, ensuring patient safety, and anticipating the needs of the operating dentist or oral surgeon. Adherence to strict infection control protocols and a deep understanding of surgical anatomy and instrumentation are essential.

Routine and Surgical Extractions

Tooth extraction is a common procedure that can be classified as either routine or surgical, depending on the complexity of the clinical presentation.

Routine Extractions

A routine extraction involves the removal of a fully erupted tooth without the need to incise the gingiva or remove supporting bone. The primary objective is to sever the Periodontal Ligament (PDL) and gently expand the alveolar bone socket to allow for the removal of the tooth.

• Luxators and Elevators: Instruments such as Coupland's elevators or Warwick James elevators are used to luxate (loosen) the tooth from its socket.
• Extraction Forceps: Once loosened, specific extraction forceps are applied to the tooth root. The design of the forceps varies depending on the tooth being extracted (e.g., upper universal, lower molars with cowhorn beaks). The application of precise, controlled force expands the socket and allows the tooth to be delivered.

Surgical Extractions

Surgical extractions are indicated for impacted teeth (such as third molars), retained roots, or teeth with complex root morphology that cannot be removed through routine methods. This approach requires access to the underlying bone.

• Mucoperiosteal Flap: A surgical incision is made using a scalpel (commonly a blade size 15), and the gum tissue and periosteum are elevated to expose the bone.
• Bone Removal: A surgical handpiece and sterile saline irrigation are used to remove bone (ostectomy) or section the tooth (odontotomy). Sterile saline is crucial for cooling the bone and preventing thermal necrosis.
• Suturing: Following extraction, the area is debrided, and the mucoperiosteal flap is repositioned and secured with sutures (e.g., resorbable Vicryl or non-resorbable silk) to promote primary intention healing.

Surgical Instruments and Support

The dental nurse must prepare the surgery and assemble the correct sterile instrumentation for the planned procedure. A standard surgical tray includes:

• Diagnostic Instruments: Mirror, probe, college tweezers.
• Local Anaesthetic Syringe: Assembled and ready for use.
• Scalpel and Blades: For incisions.
• Periosteal Elevators: Such as Howarth's or Molt's to retract the flap.
• Surgical Handpieces and Burs: Specifically designed to vent air away from the surgical site to prevent surgical emphysema.
• Surgical Aspirator: A fine-tipped aspirator for precise fluid removal without damaging delicate tissues.
• Suture Material and Needle Holders: For wound closure.

The nurse's duties during the procedure include passing instruments, providing high-volume aspiration, retracting soft tissues (lips, cheeks, tongue), and monitoring the patient's condition.

Post-Operative Complications: Dry Socket

A significant complication following extraction is Alveolar Osteitis, commonly known as dry socket. This occurs when the blood clot that normally forms in the socket is dislodged, dissolves, or fails to form, exposing the underlying bone and nerves to the oral environment.

• Symptoms: Severe, throbbing pain starting 2 to 4 days post-extraction, halitosis (bad breath), and an empty-looking socket.
• Risk Factors: Smoking, poor oral hygiene, surgical trauma, oral contraceptive use, and failing to follow post-operative instructions.
• Management: The socket is gently irrigated with warm sterile saline or chlorhexidine mouthwash to remove debris. A medicated dressing (such as Alvogyl) is placed into the socket. The dressing contains analgesic (e.g., eugenol) and antimicrobial agents to soothe the pain and prevent infection. Antibiotics are rarely indicated unless there is evidence of spreading infection.

Post-Operative Instructions

Providing clear, unambiguous post-operative instructions is a vital duty of the dental team, often delivered by the dental nurse. These instructions ensure patient safety and promote optimal wound healing. Instructions should be given both verbally and in written form.

Immediate Instructions (First 24 Hours):

• Do not rinse the mouth, spit forcefully, or drink through a straw, as these actions create negative pressure that can dislodge the blood clot.
• Avoid hot drinks and hot food, which can cause vasodilation and trigger secondary bleeding.
• Abstain from alcohol and strenuous physical exercise to maintain normal blood pressure and prevent bleeding.
• Do not smoke, as smoking impairs healing, increases the risk of dry socket, and introduces toxins to the wound site.
• If bleeding restarts, bite down firmly on a clean, damp gauze swab or rolled cotton handkerchief for 20-30 minutes.

Subsequent Instructions (After 24 Hours):

• Begin gentle warm saline mouthwashes (one teaspoon of salt in a cup of warm water) after meals to keep the surgical site clean.
• Maintain normal oral hygiene by brushing the remaining teeth, being careful around the extraction site.
• Take prescribed or over-the-counter analgesics as directed for pain relief.
• Contact the dental practice if severe pain, swelling, or prolonged bleeding occurs.

Thorough understanding of these principles allows the dental nurse to effectively assist in minor oral surgery, manage potential complications, and ensure patients receive the highest standard of care and post-operative support.