Preventive Dentistry and Cleaningsin Beverly Hills
Dr. Kiyan Mehdizadeh has practised since 2012 in a single Beverly Hills location. The hygiene side of the practice does two jobs: it keeps healthy mouths healthy, and it protects veneer, crown and implant work that has already been paid for. Cleanings start at $300.
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What gum disease actually is
Hygiene appointments get sold as a polish. They are not. The appointment exists to find and control a disease that is common, slow, and almost entirely silent until it is late.
Plaque is an organised bacterial community, not leftover food. Within a day or two of being left alone it matures and begins provoking an immune response in the gum beside it. Brushing disrupts it. Once it mineralises into calculus it becomes a rough, anchored surface that a brush cannot touch, and that surface holds the next biofilm more readily than enamel ever did.
The distinction that matters more than any other is this one. Gingivitis is inflammation confined to the gum — red, swollen, bleeds when you brush — and it resolves completely once the biofilm causing it is removed. Periodontitis is what happens when that inflammation reaches the bone and the attachment between tooth and bone is lost. That bone does not grow back on its own. Everything about how often you are seen, and what is done when you are, follows from which of the two you have.
Most of the destruction is not done by the bacteria directly. It is done by your body's inflammatory response to them, which is why the same amount of plaque produces mild disease in one person and significant bone loss in another, and why smoking, diabetes and inherited susceptibility change the picture so much. The goal is therefore not sterility, which is unachievable, but keeping the load below the level that provokes you specifically.
And it gives you almost no warning. Periodontitis does not usually hurt, and teeth do not loosen until a large share of the support is already gone. Bleeding when you brush is the early sign, and it is the one most people learn to ignore because it stops being alarming after the tenth time.
What your numbers mean
Six measurements are taken around every tooth and read aloud. Most patients have heard those numbers for years without being told what they mean, so here is the scale.
One to three millimetres with no bleeding is healthy. The probe stops where the attachment is intact and the whole surface is reachable with a brush and floss. A routine cleaning maintains it.
One to three millimetres with bleeding is gingivitis. The depth is normal; the tissue is inflamed. This is the stage that is fully reversible, and the one worth acting on.
Four millimetres is the beginning of a pocket — too deep to keep clean with a brush, and deep enough to shelter bacteria that do not tolerate oxygen. Whether it is treated or watched depends on whether it bleeds and on what your chart did last year.
Five to six millimetres is established periodontitis. Attachment and bone have been lost, and instrumentation has to go beneath the gum to reach the root surface itself.
Seven millimetres and deeper is advanced. Root grooves and furcations put some surfaces genuinely out of reach from above the gum line, and at that point surgical access or a specialist opinion is discussed rather than repeating something that has not worked.
Depth alone does not decide treatment. Bleeding on probing is the number that separates a pocket which is stable from one that is actively losing attachment, and it is recorded alongside every depth. A four millimetre pocket that bleeds and a four millimetre pocket that does not are different problems with different answers.
What we do about it
Each step is a different treatment with different evidence behind it. The figures below come from the manufacturers' own labelling and from published trials, including where those figures are modest.
Cleaning, and periodontal maintenance
A routine cleaning removes plaque and calculus from the crown of the tooth and just under the gum margin, followed by polishing and a check of every existing restoration. Periodontal maintenance is not the same appointment under a different name. It is for patients already treated for periodontitis, it works beneath the gum where the pockets were, and it runs on a three or four month interval because that is roughly how long the subgingival biofilm takes to reorganise after being disrupted.
Scaling and root planing
Cleaning the root surface beneath the gum where pockets have formed, done one quadrant at a time under local anaesthetic so that it can be thorough rather than merely tolerable. This is treatment for a disease, not a deeper polish. It is followed by a re-evaluation at four to six weeks, measuring the same points, because which pockets actually closed decides everything that comes after.
Arestin
Minocycline hydrochloride, one milligram, in bioresorbable microspheres placed directly into a pocket immediately after root planing. Its FDA label indicates it "as an adjunct to scaling and root planing procedures for reduction of pocket depth in patients with adult periodontitis", and the same label states plainly that the mechanism as an adjunct is unknown. In the combined trials, mean pocket depth change at nine months was 1.42 mm with it against 1.18 mm for root planing alone. That is a real but modest addition, which is why it goes only into the pockets that warrant it rather than throughout the mouth. It resorbs, so nothing is removed afterwards.
Perio Protect
Prescription trays with a sealed edge that hold a low-concentration hydrogen peroxide gel against the tissue and down into the pocket between appointments, minutes at a time. In a six-month randomised, examiner-blind trial using 1.7% gel alongside root planing, sites deeper than five millimetres at baseline reduced by 1.50 mm against 0.55 mm for root planing alone, and 72 percent of those sites returned to five millimetres or less against 28 percent of controls. The difference in bleeding in that same study only approached significance. It is prescribed as an addition to in-office therapy, never as a replacement for it.
If you already have veneers or implants
Restorations do not maintain themselves, and they are not maintained the way natural teeth are. If you have had significant work done, here or anywhere else, this is why your hygiene visit is different.
An implant is not a tooth. A natural tooth is suspended in bone by a periodontal ligament, which brings its own blood supply and its own defences. An implant is fused directly to bone with no ligament at all, and the collar of soft tissue around it has fibres running parallel to the surface rather than inserting into it. That is a weaker seal, so once inflammation starts it spreads faster and further than it would around a tooth.
Which makes the early stage the whole game. Peri-implant mucositis is inflammation in the soft tissue only, and it is reversible. Peri-implantitis is the same process after it has reached bone, and that bone does not return. Implants are probed and radiographed on a schedule for that reason and not as a formality.
Ceramic has its own requirement. Glazed porcelain and composite are scratched by instruments and prophylaxis pastes that are entirely safe on enamel, and a scratched surface picks up stain faster from then on. Margins are checked every visit for the earliest sign of an open edge. Tell us what work you have had and where, including anything done elsewhere.
The other half of protection is load. Grinding and clenching wear enamel, fracture fillings and chip ceramic, and a night guard moves that load onto an appliance instead. Where crowns or veneers have been placed it is usually the least expensive item on the plan and the one protecting the most expensive.
What Actually Happens
Charting Before Cleaning
Six probing depths around every tooth, bleeding recorded at each point, plus recession, mobility, furcation involvement and radiographs where they are due. This is what decides whether you need a cleaning or treatment, and it happens before a figure is quoted rather than after.
The Cleaning Itself
Ultrasonic and hand instrumentation, polishing, and a review of every crown, veneer and implant you have. Anything that has chipped, worn or opened at the margin is photographed and shown to you on the screen while you are still in the chair.
Treatment Where the Chart Says So
Root planing by quadrant where the pockets require it, with Arestin placed into the pockets that warrant it or Perio Protect trays prescribed for use between visits. Re-evaluation at four to six weeks, measuring the same points, so the effect is demonstrated rather than assumed.
Setting the Interval Honestly
Your recall comes out of your chart, not out of a default. Six months for most people. Three or four where periodontitis has been treated, where pockets remain deeper than average, or where there is extensive ceramic and implant work whose margins need watching.
Frequently Asked Questions
How much does a dental cleaning cost in Beverly Hills?+
Cleanings at Dr. Kiyan Mehdizadeh's Beverly Hills practice start at $300. What a visit costs above that depends on whether you need a routine cleaning or periodontal therapy, and that is decided by the examination and the periodontal charting rather than assumed in advance. You are given the figure before treatment begins, not afterwards.
What do the numbers the hygienist reads out mean?+
They are pocket depths in millimetres, six around each tooth. One to three millimetres with no bleeding is healthy. One to three with bleeding is gingivitis: normal depth, inflamed tissue, and fully reversible. Four millimetres is the start of a pocket that a brush can no longer keep clean. Five to six means attachment and bone have been lost and instrumentation has to go beneath the gum. Seven and deeper is advanced, where root grooves and furcations put some surfaces out of reach from above the gum line.
What is the difference between gingivitis and periodontitis?+
Gingivitis is inflammation confined to the gum. It resolves completely once the biofilm causing it is removed. Periodontitis is what happens when that inflammation reaches the bone and the attachment between tooth and bone is lost, and that bone does not grow back on its own. The practical consequence is that gingivitis is a cleaning-and-home-care problem while periodontitis is a lifelong management problem, and the point of measuring is to catch the first before it becomes the second.
What is the difference between a routine cleaning and scaling and root planing?+
A routine cleaning removes plaque and hardened deposit from the crown of the tooth and just below the gum margin. Scaling and root planing goes beneath the gum to clean the root surface itself where pockets have formed, usually one quadrant at a time under local anaesthetic so that it can be thorough rather than merely tolerable. It is a treatment for a disease rather than a deeper polish, and it is followed by a re-evaluation at four to six weeks to measure which pockets actually closed.
What is Arestin and does it work?+
Arestin is minocycline hydrochloride, 1 mg, in bioresorbable microspheres placed directly into a periodontal pocket immediately after root planing. Its FDA label indicates it as an adjunct to scaling and root planing for reduction of pocket depth in adult periodontitis, and states plainly that the mechanism as an adjunct is unknown. In the combined clinical trials the mean pocket depth change at nine months was 1.42 mm with Arestin against 1.18 mm for root planing alone. That is a real but modest addition, which is why it is placed only in the pockets that warrant it rather than throughout the mouth.
What is Perio Protect and what does the evidence show?+
Perio Protect uses prescription trays with a sealed edge that hold a low-concentration hydrogen peroxide gel against the gum tissue and into the pocket between appointments. In a six-month randomised, examiner-blind trial using 1.7% gel alongside scaling and root planing, sites deeper than 5 mm at baseline reduced by 1.50 mm compared with 0.55 mm for root planing alone, and 72 percent of those sites came back to 5 mm or less against 28 percent of controls. The difference in bleeding in that same study only approached statistical significance. It is prescribed as an addition to in-office therapy, never as a replacement for it.
How often should I have my teeth cleaned?+
Most patients are seen every six months. A three or four month interval is used where periodontitis has been treated, where pockets remain deeper than average, or where there is extensive veneer, crown or implant work whose margins need watching. Three to four months is not an upsell: it is roughly how long the subgingival biofilm takes to reorganise after it has been disrupted, which is why periodontal maintenance runs on that cycle.
Do veneers and implants need different cleaning?+
Yes, and for a structural reason. Glazed porcelain and composite are scratched by instruments and prophylaxis pastes that are entirely safe on enamel, and a scratched surface picks up stain faster from then on. Implants matter more still: an implant is fused directly to bone with no periodontal ligament, and the soft tissue collar around it has fibres running parallel to the surface rather than inserting into it, so the seal is weaker and inflammation spreads faster. Implants are probed and radiographed on a schedule to catch peri-implant mucositis, which is reversible, before it becomes peri-implantitis, which involves bone that does not come back.
Do I need a night guard?+
You may, if you grind or clench. The signs are flattened biting surfaces, hairline cracks in enamel, fillings that keep fracturing and ceramic that chips with no obvious cause. A guard is worn at night so that it takes the load instead of the teeth. Where crowns or veneers have been placed it is usually the least expensive item on the whole treatment plan and the one that protects the most expensive.
What happens during an oral cancer screening?+
The lips, tongue, floor of the mouth, palate, tonsillar area and the soft tissue of the neck are examined by sight and by touch at each hygiene visit. Anything unusual is recorded and photographed, and you are told what was found rather than only noted in the file. Where a finding has not resolved on its own within a short review period, you are referred for a specialist opinion.
Hygiene and periodontal care here are carried out under Dr. Kiyan Mehdizadeh, DMD, who has practised in the same Beverly Hills location since 2012. Because the restorative work and the maintenance happen in one place, the person checking your margins is the person who knows how they were made.
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