When does thin, receding gum need intervention?
Thin gingival tissue and localised recession are findings we see regularly in general practice. In many patients, improving plaque control, removing traumatic factors and monitoring may be entirely appropriate.
But when does monitoring stop being enough? And what is the tipping point for considering surgical intervention?
This case from Dr Bruno Delaunay, Specialist Periodontist, demonstrates why the decision is rarely based on the amount of recession alone. Instead, it is the combination of clinical findings, anatomy, symptoms and patient factors that determines whether intervention may be beneficial.
The referral
This young patient was referred by their GDP with inflamed and particularly thin gingival tissues around the lower incisors.
The patient had also noticed recession around one of the lower central incisors and was understandably concerned:
Could the recession progress — and could they eventually lose the tooth?
There was no relevant medical history and no previous orthodontic treatment.
What did we find?
At the initial examination in December 2024, there was a high plaque score and significant gingival inflammation.
More importantly, examination revealed a combination of mucogingival factors:
- Thin periodontal phenotype affecting the lower incisors
- Recession affecting LR1
- Abnormally high frenum attachment
- Shallow vestibule
- Limited robust keratinised tissue around the area
Individually, these findings do not necessarily mean that surgery is required.
Together, however, they changed the clinical picture.
So, where was the tipping point?
The presence of recession alone was not the indication for surgery.
The decision was based on the wider clinical environment: thin tissue, recession, shallow vestibular depth and a high frenum attachment, alongside the need to establish good plaque control and create a more maintainable soft-tissue environment.
Before considering surgery, the first priority was therefore to address the inflammation.
The patient received oral hygiene instruction and plaque-control support, allowing the tissues to become healthier before the next stage of treatment was considered.
Once inflammation had been controlled, the anatomical factors remained.
Following discussion of the findings and treatment options, the patient chose to proceed with a free gingival graft and frenectomy.
Why a free gingival graft?
In this case, the principal objective was not simply to cover the visible recession.
The aim was to improve the soft-tissue environment around the lower incisors by increasing the band of keratinised tissue and addressing the pull from the high frenum attachment.
The frenectomy reduced the unfavourable tissue pull, while the free gingival graft provided a more robust zone of tissue around the affected area.
Treatment planning meant considering the patient too
There was another factor that could easily have been overlooked.
The patient was a university student, was not normally based in London and exercised frequently.
For periodontal surgery, what happens after the procedure is an important part of treatment planning.
Dr Delaunay therefore deliberately scheduled surgery for July 2025, during the patient’s summer break.
This meant the patient could return home, avoid the normal pressures of university life and, importantly, reduce strenuous exercise and allow 2–3 weeks of protected recovery during the early healing phase.
Rather than fitting the patient around the surgery, the surgery was fitted around the patient.
Surgery — July 2025
A free gingival graft and frenectomy were carried out in the lower anterior region.
The graft was positioned and stabilised across the recipient site to increase the zone of keratinised tissue and improve the local mucogingival environment.
Six weeks later — September 2025
At the six-week review, the graft had integrated well and healing was progressing as expected.
There was already a visibly broader and more robust band of tissue around the treated lower incisors.
One year later — July 2026
The one-year review provides perhaps the most valuable photograph in this case.
The result remained stable, with a substantially improved band of keratinised tissue around the lower anterior region.
For the patient, who had originally arrived worried about losing a tooth, this also provided important reassurance.
What can GDPs and hygienists take from this case?
The key message is that recession does not automatically mean surgery — and the millimetres of recession should not be considered in isolation.
When deciding whether to monitor or refer, look at the whole mucogingival picture: tissue phenotype, progression, inflammation and plaque control, vestibular depth, frenum or muscle pull, patient symptoms and the patient’s ability to maintain the area.
A thin phenotype may remain perfectly stable. But when several unfavourable factors occur together, specialist assessment can help determine whether monitoring remains appropriate or whether intervention could create a healthier, more maintainable environment.
And if surgery is indicated, this case demonstrates another important principle:
Successful periodontal surgery isn’t only about what happens in the surgical chair. Patient preparation, timing, postoperative behaviour and long-term maintenance all contribute to the outcome.
Case by Dr Bruno Delaunay
Specialist Periodontist & Implant Surgeon
DipChD (Lorraine) | M Perio RCS Eng | EFP Diploma
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