Are your dentures slipping, sore, clicking, or difficult to chew with? Explore our 25-point diagnostic checklist to understand the root cause and step-by-step clinical solutions.
Issues related to loose plates, shifting bases, loss of suction, and border extension problems.
When dentures drop during speech, laughter, or coughing, the peripheral border seal or post-dam seal has failed due to progressive jawbone resorption or over-extended borders.
Lower full dentures have less surface area than upper dentures. Displacement during tongue movements indicates lingual flange over-extension or improper neutral zone tooth positioning.
A denture that rocks side-to-side when biting on one side suffers from unbalanced occlusal contacts or uneven gum tissue resorption along the bony ridge.
While small amounts of adhesive can offer temporary security, needing to apply glue multiple times daily is a definitive clinical sign that the denture no longer fits your mouth.
A gagging sensation occurs when the rear border (post-dam) of an upper denture extends past the hard palate onto the sensitive moving tissue of the soft palate.
Gum soreness, burning mouth, red inflamed mucosa, angular cheilitis, and bruised ridges.
Painful localized ulcers or raw spots occur when high-pressure points on a rough or misaligned acrylic base dig directly into delicate oral mucosa during chewing.
Widespread redness and swelling under a denture indicates Denture Stomatitis or chronic micro-trauma from wearing dentures overnight without adequate tissue resting periods.
Painful split corners of the mouth occur when worn-down dentures collapse your vertical bite height, creating deep skin folds where saliva pools and breeds fungal infections.
A bruised or bleeding sensation when taking dentures out indicates extreme localized bite pressure or heavy clasp tightness digging into soft tissues and underlying bone.
Difficulty chewing firm foods, trapped debris under plates, front tooth biting issues, and diminished taste.
Inability to chew steak, apples, or crusty bread indicates severe loss of denture stability, dull worn-down teeth, or improper occlusal forces.
Seeds, grains, and food debris trapped under a plate occur when the peripheral border seal is broken, creating a gap between the acrylic and gum tissue.
Biting an apple or sandwich with front denture teeth leverages the back of the plate upward. Inability to bite frontally indicates poor anterior-posterior stability or incorrect incisal overlap.
A full acrylic upper denture covers the roof of the mouth, blocking upper palatal taste receptors and insulating against natural food temperature enjoyment.
Uneven occlusal contacts, TMJ/jaw joint ache, lip thinning, and facial height collapse.
An uneven bite occurs when artificial teeth meet prematurely on one side, causing high pressure, plate tipping, and jaw muscle fatigue.
Jaw joint pain and temple headaches arise when incorrect denture bite height over-closes or over-opens your jaw, placing chronic stress on the temporomandibular joint (TMJ).
Facial collapse and thinning lips occur when worn denture teeth or resorbable jawbone reduce lower face height, giving a prematurely aged, 'sunken' appearance.
Acrylic hairline fractures, blunt worn teeth, persistent deep odor/stain absorption, and age-related wear.
Hairline cracks and chips stem from impact drops, heavy biting stress on thin acrylic, or micro-flexing over resorbed gum ridges.
Plastic denture teeth naturally wear down over 5–7 years, losing sharp cusps. Blunt teeth require double the chewing force, causing gum soreness and jaw fatigue.
Persistent smells and deep dark stains occur when porous older acrylic absorbs bacterial biofilms, fungus, calculus, and food pigments beneath the surface.
Dental clinical standards recommend replacing or re-evaluating full dentures every 5 to 7 years. Oral jawbones continuously reshape while acrylic micro-flexes and wears out.
Book a free 30-minute diagnostic session with our qualified Clinical Dental Technicians across 22 UK locations. Experience suction-fit comfort, custom aesthetics, and unshakeable stability.