The Lower Denture Had Never Stayed In, and She Had Stopped Trying

Quick answer: Two implants under a lower denture, with clip attachments, is the most cost-effective implant treatment in dentistry. It does not replace teeth — it holds a denture still, which for a lower denture wearer is frequently a larger change than anything else available.

The call

She had four tubes of denture adhesive in her handbag and put them on the desk, which was a more eloquent history than anything she said afterwards.

Sara, 71, from Old Beit Shemesh, had worn a full lower denture for fourteen years. It had never been satisfactory. She had had three made, each better made than the last, and none of them stayed in place.

She had assumed she was doing something wrong.

What we found

Her denture was, in fact, well made. Accurate fit, correct extension, reasonable bite.

The problem was underneath it. Her lower ridge had resorbed to almost nothing — a flat, narrow band of bone with the muscle attachments sitting close to the crest.

Why lower dentures are so much worse than upper ones, which almost nobody explains and which would have saved her years of feeling at fault:

• An upper denture has a palate. That large flat surface generates suction, and suction holds it in place.
• A lower denture has no palate. It is a horseshoe sitting on a ridge, with a tongue moving underneath and inside it and cheeks and lips pushing from outside.
• The lower ridge resorbs faster and further than the upper, so what little there is to grip disappears over the years.
• The tongue displaces it constantly.

The consequence is that a well-made lower denture in a resorbed ridge can be technically excellent and still not stay put. That is not a fault of the denture or the wearer.

The scan showed adequate bone in the front of the lower jaw, between the mental foramina, which is where bone persists longest even in a very resorbed mandible. That region is the reason this treatment works so reliably.

What we did

Two implants, one on each side of the midline, placed under local anaesthetic in about forty-five minutes. Straightforward surgery in good-quality bone with no grafting required.

Three months of healing, wearing her existing denture, relieved and relined with a soft material so it did not press on the sites.

Locator attachments fitted at three months — small stud abutments on the implants, with nylon inserts placed into the fitting surface of the denture that clip over them. The nylon inserts come in different retention strengths, which lets the grip be adjusted to what the patient can manage.

Her existing denture was converted rather than remade, which is often possible and reduces the cost considerably. It was in good condition and fitted well; it simply needed the housings incorporated and a reline.

Adjustment over three visits to get the retention right. Too tight and an older patient with reduced hand strength cannot remove it; too loose and it lifts. We started with the lightest inserts and increased.

The trade-offs, stated plainly beforehand:

• It is still a denture. It comes out at night, it covers the ridge, and it is not the same as fixed teeth.
• The nylon inserts wear and need replacing, typically once or twice a year. A small ongoing cost.
• The implants need cleaning around, daily, and professional maintenance.
• Two implants stop it lifting at the front. Some rocking at the back remains, which is normal for this design.

What it is not: a fixed bridge. Patients who expect fixed teeth from a two-implant overdenture are disappointed, and that expectation has to be corrected before treatment rather than after.

The outcome

She eats apples. That was the specific thing she mentioned at the review, and it is the kind of detail that measures this treatment better than any clinical parameter.

The adhesive went in the bin. She has had the nylon inserts replaced three times in four years.

Cost was a fraction of a full fixed arch, and the functional gain for a lower denture wearer is arguably the largest available for the money in implant dentistry.

What to do if this happens to you

1. Stop assuming the problem is you. A lower denture on a resorbed ridge behaves badly regardless of quality.
2. Ask about a two-implant overdenture before considering a full fixed arch. It costs far less.
3. Ask whether your existing denture can be converted rather than remade.
4. Ask about the nylon inserts — how often they need replacing and what that costs.
5. Understand it is still removable. Expecting fixed teeth from this leads to disappointment.
6. Get it done sooner rather than later. Continued resorption reduces the bone available.

Lower denture that will not stay in? Ask Ramat Beit Shemesh Urgent Dental Care about a two-implant overdenture. 055-985-8845 · WhatsApp https://wa.me/972559858845 · Harav Kook 28/1, Beit Shemesh

This is a composite clinical story. It reflects a presentation we see regularly in Beit Shemesh and Ramat Beit Shemesh; the name and details are illustrative and are not those of a real patient.