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Periodontitis care

Periodontal regeneration · Barcelona

Could your tooth
be kept?
Start with its support.

Periodontal regeneration aims to recover some of the support lost around a natural tooth. For a suitable defect, it can be one part of a plan to preserve the tooth after gum disease has been treated and reassessed.

Care with Dr. Sergi Rivas Frau and Dr. Sahand Shirzadi Maryan. We assess the whole tooth and discuss realistic options before deciding on surgery.

Visits take place at collaborating dental clinics in Barcelona. The location is confirmed when your appointment is arranged.

What supports a natural tooth?

Natural tooth supportReference anatomy of a natural tooth. Gum meets the tooth neck. Bone supports the root, with a thin periodontal ligament between the root and bone. This is not a predicted treatment result.CrownGumBoneRootLigament

More than bone alone.

The root surface, its fine attachment fibres and the surrounding bone work together. The ligament is shown wider here so you can see it.

Healthy reference anatomy, not an after-treatment result. Original educational cross-section · not to scale. A simplified explanation, not a scan, surgical plan or predicted result.

The shape changes the possibilities

Not every area of bone loss is the same.

These are different patterns, not inevitable stages. Examination, a periodontal chart and appropriate radiographs help establish what remains. The exact defect may become clearer during surgery.

A defect alongside the root

An angular pocket of lost support.

A pattern of periodontal bone lossAn angular defect alongside one root, with higher bone away from the tooth and a deeper pocket near the root. This section cannot establish the number of remaining bone walls.PocketDefectBone
Original educational cross-section · not to scale. A simplified explanation, not a scan, surgical plan or predicted result.

Some deeper defects extend down alongside the root while bone remains higher nearby. A suitable defect may provide a protected space for regenerative healing.[2]

The remaining walls and their shape matter. This section cannot show the full three-dimensional defect.

A different bone-loss pattern

A broader reduction in support.

A pattern of periodontal bone lossA broadly reduced bone crest around a natural tooth with some remaining support. The drawing does not determine treatment or prognosis.GumLower crestBone
Original educational cross-section · not to scale. A simplified explanation, not a scan, surgical plan or predicted result.

When the bone level is reduced across a wider area, the geometry is different. Treatment still aims to control disease and make the teeth maintainable; rebuilding the full original height is not a routine expectation.[1]

A lower bone level does not automatically mean that a tooth must be removed.

Where molar roots divide

A defect between the roots.

Support between molar rootsA two-rooted molar with reduced support between its roots, beneath their division. This illustrates the location of a furcation defect, not its clinical grade.MolarBetween rootsBone
Original educational cross-section · not to scale. A simplified explanation, not a scan, surgical plan or predicted result.

This is called furcation involvement. Regenerative treatment can help selected defects, particularly certain partially involved sites. Through-and-through involvement and complex upper-molar sites require a different assessment.[3]

The drawing shows the location, not the clinical grade. Cleaning access, root anatomy and the extent of involvement change the plan.

Control disease. Reassess. Choose.

The treatment starts before surgery.

Regeneration is a site-specific option within periodontal care. Good daily plaque control and management of relevant risks, such as smoking and diabetes, are part of the foundation.[1]

  1. 01

    Establish control

    Understand the diagnosis, improve home cleaning and carry out non-surgical treatment beneath the gum.

  2. 02

    Reassess the response

    Check remaining pockets, bleeding, tooth stability and whether a suitable defect still needs treatment.

  3. 03

    Agree the next step

    Discuss expected benefit, limitations, alternatives and materials. Choose regeneration only where it is appropriate.

  4. 04

    Protect and maintain

    Support wound healing, attend reviews and continue personalised periodontal maintenance.

A suitable, maintainable tooth

A deep, favourable defect may lead to a discussion about regenerative surgery.

A different pattern or response

Further cleaning, access surgery or another approach may better address the remaining problem.

A tooth that cannot be maintained

Extraction and replacement may be the more appropriate plan. Regeneration cannot rescue every tooth.

Different tools for the healing environment

Prepared root. Stable wound. Selected materials.

During surgery, the site is accessed and cleaned. The chosen approach aims to support healing of the tooth’s attachment. These illustrations show options that may be combined, not three compulsory stages.[2]

A biologic approach

Enamel matrix derivative.

A periodontal regenerative treatment optionA cleaned angular defect with a thin layer representing enamel matrix derivative on the root. The gel is not bone.Natural toothProtein gelBone
The amber line represents gel. It is not a layer of new bone.

A protein-based gel may be placed on the prepared root surface to support the biological processes involved in periodontal healing.

Guided tissue regeneration

A protective barrier.

A periodontal regenerative treatment optionA barrier covers the entrance of a cleaned angular defect to protect a healing compartment. No regenerated bone is depicted.Natural toothBarrierBone
The barrier protects a space. Its design and suitability depend on the defect.

A membrane can help separate the healing compartment from rapidly growing gum-surface cells, giving the supporting tissues an opportunity to recover.

Space and scaffold

A graft material, when useful.

A periodontal regenerative treatment optionGraft particles occupy a cleaned angular defect as a scaffold. They are unhealed material, not new bone or a predicted outcome.Natural toothGraft particlesBone
These are graft particles immediately after placement, not regenerated bone or a promised outcome.

A bone-derived or substitute material may help support the space and clot. It may be combined with a membrane or enamel matrix derivative when appropriate.

Know what is being used, and why.

Some materials have animal origins, including enamel matrix derivative; others have human or synthetic sources. Ask about the specific product, alternatives and any personal preferences before consenting. No material guarantees regeneration.[6]

A realistic goal, with continuing care

Better support is the aim.
Maintenance remains essential.

What benefit can you expect?

Studies of selected intrabony defects report improvements in attachment and pocket depth, with benefits that can persist under continuing care. The result varies with the defect, the tooth, healing and long-term risk control.[2][4]

Research has also explored preserving severely affected teeth in carefully selected patients. This supports discussing tooth retention where feasible; it does not make every compromised tooth a suitable candidate.[5]

Recovery needs an individual plan.

Possible effects include discomfort, swelling, bleeding, gum recession and sensitivity. Incomplete healing or insufficient improvement can mean further care is needed.

Follow the instructions for cleaning, eating, medication and reviews given for your procedure. Contact the treating team if symptoms worsen or you are concerned. Healing time and the review schedule are agreed for your case.[6]

Preparation and recovery guide

Before you decide

Questions worth bringing to your consultation.

Will all the lost bone grow back?

No. The aim is to improve support at a suitable site, not to recreate a perfect original jaw. The amount of clinical improvement varies, and a radiographic change alone does not prove that every supporting tissue has regenerated. Some teeth still need further treatment or may eventually be lost.

Does every deep pocket need regenerative surgery?

No. We first treat the periodontal disease and reassess. The remaining pocket, defect shape, tooth condition, cleaning access and your preferences help determine whether regeneration, further non-surgical care or another surgical approach makes sense.

Is this the same as a gum graft or bone grafting for implants?

They have different aims. Periodontal regeneration seeks to recover some of the attachment supporting a natural tooth. A gum graft mainly changes soft-tissue coverage or thickness. Bone augmentation for implants prepares or rebuilds an implant site. Sometimes different procedures are combined in an individual plan.

Can a loose tooth be saved?

Sometimes, but looseness alone cannot answer that question. We assess remaining support, inflammation, the bite, root and nerve health, and whether the tooth can be restored and cleaned. Additional treatment or stabilisation may be needed; extraction is appropriate for some teeth.

How many visits will I need?

Allow for assessment, initial periodontal treatment, reassessment, any agreed surgery and postoperative reviews, followed by continuing maintenance. Healing and the appointment sequence vary. If you travel to Barcelona, agree the follow-up arrangements before booking travel.

Understand the outlook for your tooth.

Tell us what concerns you and whether you already have a periodontal chart or radiographs. We can discuss the assessment needed, options for keeping the tooth and alternatives if it cannot be maintained.

Request a periodontal assessment

The evidence behind this guide

Guidelines, research and patient information.

Sources checked 24 October 2026. Evidence describes study populations and selected defects; it cannot predict your personal result. All drawings on this page are original educational schematics.

  1. [1] Sanz et al. (2020). Treatment of stage I–III periodontitis — the EFP S3 level clinical practice guideline.

    Stepwise care, patient selection and recommendations for residual intrabony and furcation defects.

  2. [2] Nibali et al. (2020). Regenerative surgery versus access flap for the treatment of intra-bony periodontal defects: a systematic review and meta-analysis.

    Comparative evidence for regenerative treatment of selected defects around natural teeth.

  3. [3] Jepsen et al. (2020). Regenerative surgical treatment of furcation defects: a systematic review and Bayesian network meta-analysis of randomized clinical trials.

    Evidence and limits for regeneration at defects between molar roots.

  4. [4] Stavropoulos et al. (2021). Medium- and long-term clinical benefits of periodontal regenerative/reconstructive procedures in intrabony defects.

    A systematic review and network meta-analysis of longer-term clinical outcomes.

  5. [5] Cortellini et al. (2020). Periodontal regeneration versus extraction and dental implant or prosthetic replacement of teeth severely compromised by attachment loss to the apex: 10-year outcomes of a randomised controlled clinical trial.

    Tooth preservation in a selected, closely maintained study population; not a prediction for every tooth.

  6. [6] Leeds Teaching Hospitals NHS Trust. Periodontal surgery: patient information (reviewed 2025).

    Patient-facing explanation of surgery, regenerative materials, recovery and possible complications.

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