A deep cleaning, formally called scaling and root planing, is a dental procedure that goes below the gumline to remove hardened plaque (tartar) that regular cleanings can’t reach. It’s the standard treatment when gum disease has progressed beyond what brushing, flossing, and routine checkups can manage. If your dentist has recommended one, it typically means they’ve found pockets between your gums and teeth that are deeper than normal, signaling early to moderate gum disease.
How It Differs From a Regular Cleaning
A standard dental cleaning focuses on the visible surfaces of your teeth and just above the gumline. It’s preventive maintenance for healthy gums. A deep cleaning addresses a problem that already exists: bacteria-filled tartar has built up on the roots of your teeth, below where your gums attach.
The procedure has two parts. Scaling removes plaque and tartar both above and below the gumline. Root planing smooths the rough surfaces of the tooth roots, which helps your gums reattach to the teeth and makes it harder for bacteria to take hold again. Your dentist or hygienist will use hand instruments, ultrasonic tools, or both to do this work.
Why Your Dentist Recommends It
The decision comes down to pocket depth. During an exam, your dentist slides a small probe between each tooth and the surrounding gum tissue, measuring the gap in millimeters. In a healthy mouth, these pockets measure 1 to 3 mm. Pockets of 4 mm or deeper indicate gum disease is present. Once pockets exceed 5 mm, they can’t be cleaned effectively with routine care, and that’s where deep cleaning becomes necessary.
Your dentist will also look for other signs: gums that bleed easily, visible tartar buildup, and bone loss on dental X-rays. Pockets in the 5 to 7 mm range suggest moderate gum disease, while anything from 7 to 12 mm indicates advanced disease that may need additional treatment beyond scaling and root planing alone.
What the Procedure Feels Like
With proper numbing, a deep cleaning should not be painful. Your dentist will typically apply a topical numbing gel to the gums first, then inject local anesthetic to fully numb the treatment area. Once the anesthesia takes effect, most people feel pressure, vibration from ultrasonic tools, and a mild scraping sensation rather than sharp pain. Some patients feel very little at all. If discomfort develops at any point, additional anesthetic can be given.
Because the procedure is more involved than a standard cleaning, it’s often split into two visits, treating one half of the mouth at a time. Each appointment may last 45 minutes to an hour or longer, depending on the severity of the buildup.
Recovery and What to Expect Afterward
Once the anesthesia wears off, usually within a few hours, you can expect some tenderness and tooth sensitivity. This is normal and typically fades within a few days to a couple of weeks as the gums heal and begin tightening around the teeth again.
For the first 48 hours, a few precautions help the healing process:
- Avoid hot foods and drinks until the numbing fully wears off, to prevent burns.
- Stick to soft foods for a day or two, and chew on the opposite side of the treated area.
- Skip smoking and alcohol for at least 48 hours, as both slow healing and increase the risk of complications.
- Avoid very spicy or extreme-temperature foods, which can irritate sensitive gums.
- Brush and floss gently around the treated area for the first few days.
Your dentist will schedule a follow-up, usually four to six weeks later, to measure your pocket depths again and check how your gums have responded. Pockets in the 4 to 5 mm range can often shrink back to healthy levels with the combination of professional treatment and consistent home care. Deeper pockets may improve significantly but could require ongoing monitoring or further procedures.
Why Gum Disease Matters Beyond Your Mouth
Untreated gum disease doesn’t just threaten your teeth. The chronic bacterial infection in your gums triggers an inflammatory response that spills into the rest of your body. Gum disease is associated with elevated levels of inflammatory markers in the bloodstream, the same markers linked to blood vessel damage, unstable arterial plaque, cholesterol imbalances, and insulin resistance. Research published in the journal Medicine found that after scaling and root planing, patients showed statistically significant drops in key inflammatory markers, suggesting the procedure’s benefits extend beyond the mouth.
This connection is one reason dentists take gum disease seriously even when it isn’t causing noticeable symptoms. By the time gums are visibly swollen or teeth feel loose, significant damage to the bone supporting the teeth may have already occurred. Deep cleaning aims to halt that progression before it becomes irreversible.
Maintaining Results at Home
A deep cleaning resets the playing field, but gum disease can return if the conditions that caused it persist. After treatment, your dentist will likely recommend more frequent cleanings, often every three to four months instead of the standard six, at least for a period of time.
Daily habits make the biggest difference in whether pockets stay shallow or deepen again. Thorough brushing twice a day, daily flossing that reaches below the gumline, and using an antimicrobial mouthwash if recommended all help keep bacteria from re-colonizing the areas that were treated. Smoking is one of the strongest risk factors for gum disease recurrence, so quitting significantly improves long-term outcomes.