SRP stands for scaling and root planing, a deep cleaning procedure used to treat gum disease. It goes further than a standard dental cleaning by removing buildup both above and below the gumline, then smoothing the tooth roots so bacteria are less likely to reattach. If your dentist recommended SRP, it means they’ve found signs of periodontitis, the more advanced form of gum disease that can lead to bone and tooth loss if left untreated.
How SRP Differs From a Regular Cleaning
A routine dental cleaning (prophylaxis) focuses on polishing teeth and removing plaque and tartar from visible tooth surfaces above the gumline. SRP targets what’s happening underneath. When gum disease progresses, the gums pull away from the teeth and form pockets. Bacteria, plaque, and hardened tartar collect in those pockets where a toothbrush and floss can’t reach.
The procedure has two distinct parts. Scaling is the removal of plaque and tartar from the tooth surfaces both above and below the gumline. Root planing is a separate step where the clinician smooths the root surfaces of your teeth. Rough root surfaces give bacteria a textured place to cling, so smoothing them helps the gums reattach more tightly to the tooth and makes future buildup harder to establish.
When SRP Is Recommended
Your dentist or hygienist measures your gum pockets with a small probe during exams. Healthy gums typically measure 1 to 3 millimeters deep. Pockets of 4 millimeters or more with bleeding on probing suggest active gum disease, and that’s generally when SRP enters the conversation. Pockets of 5 mm or deeper are considered a significant risk factor for further bone loss and tooth loss if not treated. Pockets reaching 6 mm or more are a clear sign that the disease needs intervention beyond what a standard cleaning can accomplish.
SRP is considered the first-line, nonsurgical treatment for periodontitis. The goal is to reduce those pocket depths and halt disease progression before surgical options become necessary.
What the Procedure Feels Like
Because SRP involves working below the gumline, your dentist will typically numb the area with local anesthesia. The procedure is usually done one or two quadrants (sections) of the mouth at a time, so you may need two to four appointments to complete treatment.
Clinicians use either hand instruments (small curved tools called curettes) or ultrasonic scalers that vibrate at high frequency to break up tartar, or a combination of both. Meta-analyses comparing ultrasonic and manual instruments have found no meaningful difference in clinical outcomes. Both approaches produce similar reductions in pocket depth and similar improvements in gum attachment. The choice often comes down to your clinician’s preference and the specific characteristics of your pockets.
What Results to Expect
SRP won’t reverse bone loss that has already occurred, but it can stop things from getting worse and allow your gums to heal. Studies show an average pocket depth reduction of about 0.7 to 1.1 mm after treatment, with a similar gain in clinical attachment (how tightly the gum grips the tooth). That may sound modest, but reducing a 5 mm pocket to 4 mm can be the difference between a site that stays stable for years and one that continues to deteriorate.
Teeth with horizontal bone loss (the bone has receded evenly) tend to respond better than teeth with vertical bone loss (the bone has eroded in an uneven, crater-like pattern). After treatment, if pockets of 5 mm or more remain, your dentist may recommend additional treatment or closer monitoring, since those persistent deep pockets are a reliable predictor of continued disease progression and potential tooth loss.
Adjunctive Treatments
In some cases, your dentist may place a localized antibiotic or antimicrobial directly into the treated pockets after SRP. These are small sustained-release products that dissolve over days or weeks, delivering medication right where the bacteria live. A meta-analysis of these adjunctive therapies found that combining them with SRP produced greater pocket depth reduction than SRP alone, with no significant increase in side effects. The effect varied by product, with some showing large additional benefits and others more modest improvements. Your dentist will decide whether this step is warranted based on the severity and location of your disease.
Recovery After SRP
Soreness and increased bleeding for two to five days after the procedure is normal. Your gums may also feel tender from the anesthesia injections. Most people manage discomfort with over-the-counter anti-inflammatory pain relievers.
During the first week, rinsing with warm salt water two to four times a day helps speed healing. Avoid alcohol-based mouthwashes for the first one to five days, since alcohol can irritate the healing tissue. You may find it more comfortable to stick with softer foods for a few days, as chewing hard or raw foods can be uncomfortable on sensitive gums. Brushing and flossing should continue, but be gentle around the treated areas.
Maintenance After Treatment
SRP is not a one-and-done fix. Once you’ve been treated for periodontitis, you’ll transition from standard twice-yearly cleanings to a schedule called periodontal maintenance. The American Academy of Periodontology recommends that most patients with a history of periodontitis start with visits every three months. Over time, your dentist may adjust that interval based on how well your gums respond, but the typical range is every three to six months.
Periodontal maintenance visits are more involved than a regular cleaning. Your hygienist will re-measure pocket depths, check for bleeding, and clean below the gumline in areas that remain at risk. Staying consistent with this schedule is one of the most important things you can do to keep the disease from progressing after SRP.
How SRP Is Billed on Insurance
SRP is billed per quadrant of the mouth using specific dental codes. Code D4341 covers scaling and root planing for a full quadrant (one-quarter of your mouth), while D4342 covers a partial quadrant when only one to three teeth in that section need treatment. The distinction matters for insurance coverage: having a separate code for partial treatment makes it easier to justify coverage when gum disease affects only a few teeth in a given area rather than the entire quadrant. Most dental insurance plans cover SRP when there’s documented evidence of periodontitis, though copays and annual maximums still apply.