What Is the Difference Between Local and General Anesthesia at the Oral Surgeon?

February 2, 2026

comparison of the difference between local and general anesthesia

If you need oral surgery, one of the most common questions patients ask is:
“What kind of anesthesia will I need?”

At Calgary Oral Surgery Group, we offer different types of anesthesia so treatment can be safe, comfortable, and tailored to your needs. The two main options are local anesthesia and general anesthesia.

So, what is the difference between local and general anesthesia? While they both control pain, they work very differently. Here’s a simple breakdown to help you understand the difference.

Local Anesthesia: You’re Awake, But Numb

Local anesthesia numbs a specific area of your mouth so you don’t feel pain during the procedure.

You stay fully awake and aware, but the treated area feels numb and tingly. You may feel pressure or movement, but not pain.

Local anesthesia is commonly used for:

Simple tooth extractions
Minor oral surgery
Procedures where anxiety is low

This option has a short recovery time and is often used alone for straightforward treatments like some tooth removals. You can learn more about when extractions are needed on our page about
tooth extractions.

General Anesthesia: Fully Asleep During Surgery

General anesthesia puts you completely asleep. You are not aware of the procedure and feel nothing during surgery. Your breathing, heart rate, and oxygen levels are watched the entire time by trained professionals.

Understanding the difference between local and general anesthesia helps you feel more prepared for your appointment. With local anesthesia, only a small area of your mouth is numbed and you stay awake. With general anesthesia, your whole body is in a deep, sleep-like state. Both are safe, but they are used for very different kinds of procedures.

This option is typically used for:

Complex oral surgery
Wisdom teeth removal
Impacted teeth
Jaw surgery
Patients who cannot tolerate other forms of anesthesia
Patients with strong dental fear or anxiety
Long procedures involving multiple teeth or bone work

Because you are fully asleep, general anesthesia is performed with advanced monitoring and specialized training by a medical anesthesiologist. According to the Canadian Association of Oral and Maxillofacial Surgeons, oral surgeons receive extensive education in anesthesia and patient safety. In Canada, oral and maxillofacial surgeons complete years of hospital-based training in anesthesia before offering it in their practice.

Before your surgery, your oral surgeon will review your medical history, current medications, and any past reactions to anesthesia. You may be asked to stop eating and drinking for several hours before your appointment. This step is important for your safety.

Recovery takes longer than with local anesthesia. Most patients feel groggy, tired, or a little dizzy for the rest of the day. You will need someone to drive you home and stay with you for a few hours afterward. Most people feel back to normal within 24 hours.

How Does an Oral Surgeon Choose the Right Option?

When deciding between local and general anesthesia, your oral surgeon looks at the full picture of your health and the procedure ahead. The right choice keeps you safe, calm, and comfortable from start to finish.

The type of anesthesia recommended depends on:

The procedure being done
Your medical history and current medications
Your comfort level and anxiety
The length and complexity of surgery
Your age and overall health
Whether you have had problems with anesthesia in the past

For simple procedures like a single tooth extraction, local anesthesia could be enough. For longer or more involved surgeries, such as removing all four wisdom teeth or jaw surgery, general anesthesia may be the better choice. Knowing the difference between local and general anesthesia ahead of time can help you ask the right questions and feel more in control of your care.

At Calgary Oral Surgery Group, we take time to explain your options and help you choose what’s safest and most comfortable for you. Our team has years of experience caring for patients across Calgary and southern Alberta. You can read more about our approach on our anesthesia page.