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PubMed This is a summary of 16 peer-reviewed journal articles Updated
Dentistry

Standard of Care: The Stepwise Treatment of Periodontitis

At a Glance

Periodontitis is treated in stages rather than with one deep cleaning: patients first improve home care and control risk factors, then receive deep cleaning, treatment for persistent pockets when needed, and lifelong professional maintenance to help prevent relapse.

Treating periodontitis is not a single event, such as a one-time “deep cleaning.” Instead, modern dental medicine follows a highly organized, four-step pathway designed by the European Federation of Periodontology (EFP) [1][2]. Note that this is an evidence-based guideline framework adapted to each patient, rather than a mandatory pathway for every case (Stage IV disease, for instance, often requires additional multidisciplinary restorative planning).

Step 1: Building the Foundation

Before any deep cleaning begins, the first step focuses on changing the environment of your mouth [1].

  • Behavioral Change: Your dental team will work with you to improve your brushing and flossing techniques.
  • Risk Factor Control: This includes support for quitting smoking or coordinating with your doctor to manage blood sugar (diabetes) [1][3].
  • Initial Cleaning: Removal of the plaque and tartar above the gum line to reduce immediate inflammation [1].

Step 2: Non-Surgical Therapy (The “Deep Cleaning”)

This step involves subgingival instrumentation, commonly known as Scaling and Root Planing (SRP) [4]. Using specialized tools, your clinician disrupts the bacterial biofilm and removes mineralized deposits (tartar) from deep beneath the gums [4][5].

What to Expect:
You will likely receive local anesthesia to remain comfortable. After the procedure, you may experience temporary sensitivity to cold. As the inflammation resolves, your gums will tighten and shrink slightly; this is a sign of healing, but it may expose more root surface or create small “black triangles” between teeth. This is normal.

The Target: Pocket Closure
The general clinical target of Step 2 is “pocket closure.” This is commonly defined as a probing pocket depth (PPD) of 4 mm or less with no bleeding [4][6].

Step 3: Surgical Intervention (Managing Residual Pockets)

Roughly 8 to 12 weeks after your deep cleaning, your dentist will re-evaluate your measurements [6]. If some areas still have deep pockets—such as sites that are 5 mm and bleeding, or sites 6 mm or deeper—they may require Step 3 treatment [6][4].

  • Repeat Treatment: Sometimes a second round of non-surgical cleaning is enough for shallower residual pockets [6].
  • Periodontal Surgery: For deeper or more complex areas, your dentist may recommend surgery to provide direct access to the root for cleaning, to reshape the tissue, or to “regenerate” lost bone using grafting materials [7][8]. Note that regeneration is only possible for selected anatomical defects and generally cannot rebuild all lost bone.

Step 4: Supportive Periodontal Care (Lifelong Maintenance)

Once your disease is stable, you enter Step 4. This is a lifelong phase of preventive care [9]. Because you have a history of periodontitis, you are at a higher risk for a relapse [10]. You will typically return on an individualized interval for professional monitoring and cleaning to ensure the inflammation remains under control [9][11].

A Note on Antibiotics and Lasers

You may hear about alternative treatments, but it is important to know where they fit into the standard of care:

  • Antibiotics: Systemic antibiotics (pills) are not used routinely. They are generally reserved for specific rapidly progressing or severe acute cases, and must always be used alongside mechanical cleaning—never as a substitute [12][13]. They carry risks of side effects and interactions.
  • Lasers: While lasers (like Nd:YAG or Er:YAG) can be optional adjuncts in certain cases, evidence for their benefit is variable, and they do not replace conventional mechanical cleaning [14][15][16].

Common questions in this guide

What are the four stages of periodontitis treatment?
Treatment usually starts with improved brushing and flossing, control of smoking or diabetes, and removal of plaque and tartar above the gums. It then moves to deep cleaning below the gums, treatment of pockets that remain, and lifelong supportive care once the disease is stable.
Is a deep cleaning the entire treatment for periodontitis?
No. Scaling and root planing is usually the second step, followed by a re-evaluation in about 8 to 12 weeks; areas that remain deep and bleed may need repeat cleaning or surgery. Regular maintenance is needed after the active treatment phase.
What does pocket closure mean after periodontal treatment?
Pocket closure generally means the space between the tooth and gum measures 4 millimeters or less and does not bleed when checked. This is a clinical goal used to judge whether inflammation is under control after treatment.
When might I need periodontal surgery?
Surgery may be considered after re-evaluation if a pocket is 5 millimeters and bleeding or is 6 millimeters or deeper. It can give the dentist direct access to the root, reshape tissue, or help regenerate bone in selected defects; it cannot rebuild all lost bone.
Do antibiotics or lasers replace deep cleaning for periodontitis?
No. Pills such as systemic antibiotics are not routine and, when appropriate for a severe or rapidly progressing case, are used with mechanical cleaning rather than instead of it. Lasers may be optional additions in some cases, but their benefit varies and they do not replace conventional cleaning.
How long will I need periodontal maintenance?
Supportive periodontal care is usually lifelong after periodontitis has been treated. Your dentist or periodontal team will set an individualized schedule for monitoring and professional cleaning because a history of periodontitis increases the risk of relapse.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.Which 'Step' of the EFP guidelines am I currently in, and what are the specific goals for my next visit?
  2. 2.What is my current 'Full-Mouth Bleeding Score,' and how close am I to the goal of less than 10%?
  3. 3.Are there specific teeth that didn't reach 'pocket closure' (4 mm or less) after my initial deep cleaning?
  4. 4.If you are recommending surgery (Step 3), what specific type of procedure is best for my anatomy—regenerative surgery or a flap procedure?
  5. 5.If you are suggesting a laser or antibiotic, is it being used as an *addition* to mechanical cleaning rather than a replacement?

Questions For You

Tap a prompt to share your answer — we'll use it plus this page's context to start a tailored conversation.

References

References (16)
  1. 1

    Treatment of stage I-III periodontitis-The EFP S3 level clinical practice guideline.

    Sanz M, Herrera D, Kebschull M, et al.

    Journal of clinical periodontology 2020; (47 Suppl 22()):4-60 doi:10.1111/jcpe.13290.

    PMID: 32383274
  2. 2

    BSP implementation of European S3 - level evidence-based treatment guidelines for stage I-III periodontitis in UK clinical practice.

    West N, Chapple I, Claydon N, et al.

    Journal of dentistry 2021; (106()):103562 doi:10.1016/j.jdent.2020.103562.

    PMID: 33573801
  3. 3

    Healthy lifestyles are associated with a better response to periodontal therapy: A prospective cohort study.

    Marruganti C, Romandini M, Gaeta C, et al.

    Journal of clinical periodontology 2023; (50(8)):1089-1100 doi:10.1111/jcpe.13813.

    PMID: 37013691
  4. 4

    Subgingival instrumentation.

    Tomasi C, Abrahamsson KH, Apatzidou D

    Periodontology 2000 2023; doi:10.1111/prd.12485.

    PMID: 37162295
  5. 5

    Systemic Azithromycin as an Adjunct to Non-Surgical Subgingival Instrumentation in the Treatment of Stage III/IV, Grade C Periodontitis: 12-Month Clinical, Microbiological and Cytokine Results of a Randomised Controlled Trial.

    Sulugodu Ramachandra S, Woodford V, Han P, et al.

    Journal of clinical periodontology 2025; (52(5)):666-680 doi:10.1111/jcpe.14150.

    PMID: 40123306
  6. 6

    Outcomes of Active Periodontal Therapy in a Specialist University Setting Following EFP S3 Treatment Guideline in Stage III-IV Periodontitis Patients.

    Aimetti M, Romano F, Costanzo L, et al.

    Journal of clinical periodontology 2026; (53(4)):562-571 doi:10.1111/jcpe.70087.

    PMID: 41554667
  7. 7

    Orthodontic tooth movement after periodontal regeneration of intrabony defects.

    Martin C, Sanz M

    Korean journal of orthodontics 2024; (54(1)):3-15 doi:10.4041/kjod24.007.

    PMID: 38268459
  8. 8

    Open flap debridement compared to repeated applications of photodynamic therapy in the treatment of residual pockets: A randomized clinical trial.

    Andere NMRB, Castro Dos Santos NC, Araújo CF, et al.

    Journal of periodontology 2022; (93(11)):1671-1681 doi:10.1002/JPER.22-0059.

    PMID: 35536044
  9. 9

    Longevity of teeth in patients susceptible to periodontitis: Clinical outcomes and risk factors associated with tooth loss after active therapy and 30 years of supportive periodontal care.

    Agudio G, Buti J, Bonaccini D, et al.

    Journal of clinical periodontology 2023; (50(4)):520-532 doi:10.1111/jcpe.13770.

    PMID: 36631984
  10. 10

    Periodontal health and gingival diseases and conditions on an intact and a reduced periodontium: Consensus report of workgroup 1 of the 2017 World Workshop on the Classification of Periodontal and Peri-Implant Diseases and Conditions.

    Chapple ILC, Mealey BL, Van Dyke TE, et al.

    Journal of periodontology 2018; (89 Suppl 1()):S74-S84 doi:10.1002/JPER.17-0719.

    PMID: 29926944
  11. 11

    Recurrence and progression of periodontitis and methods of management in long-term care: A systematic review and meta-analysis.

    Leow NM, Moreno F, Marletta D, et al.

    Journal of clinical periodontology 2022; (49 Suppl 24()):291-313 doi:10.1111/jcpe.13553.

    PMID: 34761412
  12. 12

    Administration of systemic antibiotics during non-surgical periodontal therapy-a consensus report.

    Pretzl B, Sälzer S, Ehmke B, et al.

    Clinical oral investigations 2019; (23(7)):3073-3085 doi:10.1007/s00784-018-2727-0.

    PMID: 30374830
  13. 13

    Antibiotics in periodontal treatment: an umbrella review.

    Botelho J, Lyra P, Nascimento GG, et al.

    Frontiers in cellular and infection microbiology 2025; (15()):1601464 doi:10.3389/fcimb.2025.1601464.

    PMID: 40535546
  14. 14

    Long-term stability after nonsurgical treatment of periodontitis.

    Sánchez IS, Carra MC, de Albornoz AC, et al.

    Periodontology 2000 2026; doi:10.1111/prd.70032.

    PMID: 41881516
  15. 15

    Efficacy of adjunct Nd-YAG laser (1064 nm) to non-surgical periodontal therapy: a systematic review and meta-analysis of randomized controlled trials.

    Atya A, Tawfik A, Waly R, et al.

    Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2026; doi:10.1007/s43630-026-00962-5.

    PMID: 42560618
  16. 16

    Meta-analysis of laser-assisted periodontal therapy (2015-2025).

    Sunar A, Sır E, Taş Ç, Tekin E

    Lasers in medical science 2026; (41(1)).

    PMID: 41984346

This page describes the general four-step approach to periodontitis treatment for informational purposes only and does not constitute medical advice. Your dentist or periodontist should interpret your pocket measurements and recommend the right care for your mouth.

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