If a dentist or hygienist has told you that you need a “deep cleaning,” they mean scaling and root planing (SRP) — a periodontal therapy designed to treat gum disease at the early-to-moderate stage. This is categorically different from a routine cleaning. At Glisten Dental Glendale we perform SRP for patients in Glendale whose exam findings clinically justify it — no upselling routine cleanings into deep cleanings, and no delaying SRP for patients who actually need it.
Routine cleaning vs deep cleaning — the real difference
A routine cleaning (prophylaxis, or “prophy”) is preventive — cleaning above the gum line on teeth that have healthy gum tissue and pocket depths of 3mm or less. It’s the standard every-6-months appointment. Covered at 80-100% by most dental insurance. Takes 45-60 minutes.
A deep cleaning (scaling and root planing) is therapeutic — removing bacterial deposits from below the gum line, on tooth root surfaces, in patients whose gums have separated from the teeth to form periodontal pockets of 4mm or greater. This is gum disease (periodontitis) treatment, not preventive care. Takes 2 appointments of 60-90 minutes each, typically with local anesthesia.
The line between the two is not subjective. We measure pocket depths with a periodontal probe at every comprehensive exam, chart bleeding points, assess bone loss on radiographs, and classify gum health against the AAP (American Academy of Periodontology) 2017 staging criteria. If the numbers clinically justify SRP, we recommend it. If they don’t, we don’t.
How gum disease progresses
Plaque (soft bacterial film) builds up at the gum line within hours of cleaning. Mineralizes within 24-72 hours into calculus (tartar) — hard deposits that you cannot remove with a toothbrush. Calculus provides rough attachment surface for more bacteria, which irritate the gum tissue. Three stages of disease progression:
Stage 1: Gingivitis
Gum inflammation only. Red, swollen, bleeding gums. No bone loss yet. Fully reversible with a routine cleaning plus better home care over 2-4 weeks. Treatment: standard prophylaxis plus hygiene instruction. Cost: $100-$200, typically covered at 80-100%.
Stage 2: Early-to-moderate periodontitis
Inflammation has extended below the gum line. Pocket depths of 4-5mm on 4+ teeth. Mild-to-moderate bone loss visible on radiographs. Bleeding on probing. Sometimes bad breath or a metallic taste. This is where SRP comes in — not reversible in the sense that lost bone comes back, but arrestable and stabilizable. Treatment: SRP on 2-4 quadrants over 2 visits, followed by periodontal maintenance cleanings every 3-4 months indefinitely.
Stage 3: Advanced periodontitis
Pocket depths of 6mm or greater, significant bone loss, tooth mobility, sometimes pus on probing. SRP alone isn’t enough at this stage — we refer to a periodontist for surgical intervention (flap surgery, regenerative procedures, laser-assisted treatment) alongside SRP.
What SRP actually involves
SRP is performed by a dental hygienist under local anesthesia (the gums are numbed so the procedure is comfortable). The mouth is divided into four quadrants — upper right, upper left, lower right, lower left — and we typically treat two quadrants per appointment. Two appointments total for four-quadrant SRP.
The two-part procedure name is literal:
- Scaling: removing calculus and bacterial deposits from the tooth surface below the gum line using ultrasonic instruments and hand scalers
- Root planing: smoothing the root surface so new calculus and bacteria cannot re-adhere as easily, and so the gum tissue can reattach more effectively
The visits themselves: 60-90 minutes each. You’re numb, so the procedure is comfortable though you may feel pressure and vibration from the ultrasonic. Post-procedure: some tenderness for 2-3 days, mild bleeding when brushing for the first few days, occasional tooth sensitivity for 1-2 weeks.
After SRP — periodontal maintenance is lifelong
SRP is not a one-and-done treatment. Once you’ve been diagnosed with periodontitis, you’ve shown that your body has a particular inflammatory response to dental plaque. That predisposition doesn’t go away. Without maintenance, the pocket depths return within 9-12 months and you’re back to where you started.
Periodontal maintenance cleanings (different billing code than a routine prophy) are scheduled every 3-4 months indefinitely. They include scaling of any remaining deposits, re-measurement of pocket depths, and assessment for any areas that have re-developed problems. Compared to standard 6-month cleanings, periodontal maintenance catches issues earlier and keeps the disease stable.
Cost: $150-$250 per maintenance visit. Most dental PPOs cover 50-80%. Think of it as the cost of keeping your teeth versus the cost of losing them to untreated progression — an accurate framing.
When dentists overdiagnose SRP (and when they underdiagnose it)
Both happen, and we want to be upfront about it.
Overdiagnosis: some practices recommend SRP for patients with mostly 3mm pocket depths and one or two 4mm readings, framing it as “preventive deep cleaning.” This is generally not appropriate. Isolated 4mm pockets without bleeding or bone loss often stabilize with a routine cleaning plus better home care. We don’t recommend SRP unless the clinical picture clearly justifies it — and if we do, you’ll see the specific pocket depth chart and the radiographs that support the diagnosis.
Underdiagnosis: the opposite also happens — patients go 10 years of routine cleanings with gradually worsening gum disease because nobody measured pocket depths or addressed the progression. We do comprehensive periodontal charting at every patient’s initial exam and annually thereafter. You’ll know your numbers.
Home care matters more than the treatment itself
SRP buys you a cleaner baseline. What maintains it is what you do at home twice daily for the rest of your life. Three habits with the strongest evidence:
- Electric toothbrush with pressure sensor. Outperforms manual brushing for plaque removal in most studies. Pressure sensor prevents the over-scrubbing that recedes gums.
- Daily interdental cleaning. Floss, interdental brushes (Tepe, Piksters), or water flosser. The best tool is the one you’ll actually use consistently.
- Smoking cessation. Single largest modifiable risk factor for periodontal disease progression. Smokers heal 50-70% less effectively than non-smokers from any periodontal treatment.
Cost and insurance
SRP at Glisten Dental Glendale: $200-$350 per quadrant ($800-$1,400 for full-mouth four-quadrant treatment). Periodontal maintenance: $150-$250 per visit. Most dental PPO plans cover SRP at 50-80% after deductible as a major service. Annual maximums apply. For patients with extensive periodontal needs, we sequence treatment across calendar years when appropriate to maximize insurance benefit.
Call 480-630-4446 for a comprehensive periodontal evaluation in Glendale. We’ll measure, we’ll show you the numbers, and we’ll recommend only the treatment that’s clinically justified.
