— OCCLUSAL THERAPY - TORONTO
Night Guards & TMJ
in Downtown Toronto
Teeth grinding, jaw clenching, and temporomandibular joint dysfunction cause real damage — to teeth, restorations, and quality of life. At Innova Dental, we provide custom occlusal splints and TMJ assessment to protect your teeth and manage jaw symptoms.
Custom
Hard acrylic occlusal splints — laboratory fabricatedTMJ
Assessment of joint, muscle, and occlusal contributing factors— UNDERSTANDING THE PROBLEM
Bruxism and TMJ —
Two Conditions, One Cycle
Bruxism — the habitual grinding or clenching of teeth — and temporomandibular joint (TMJ) dysfunction frequently occur together, though either can exist independently. The forces generated during grinding episodes far exceed those of normal chewing, causing progressive damage to teeth and restorations that cannot be reversed.
TMJ dysfunction encompasses a range of conditions affecting the temporomandibular joint and the muscles of mastication. The relationship with bruxism is bidirectional: bruxism can provoke or worsen TMJ dysfunction, and TMJ dysfunction can alter jaw position in ways that contribute to bruxism.
Management begins with a thorough assessment to determine the relative contribution of each factor — and to document the current state of the dentition before further damage occurs.
Signs That Warrant Assessment
Worn, flattened, or chipped teeth — particularly on the biting surfaces
Teeth or restorations fracturing without a clear traumatic cause
Jaw pain, soreness, or stiffness — especially on waking
Clicking, popping, or grating sounds from the jaw joint
Headaches concentrated at the temples on waking
Facial muscle tenderness — particularly the masseter and temporalis
Partner reporting audible teeth grinding during sleep
Sensitivity without detectable decay
Bruxism is often undiagnosed. Many patients who grind during sleep are unaware of it — the first sign is often characteristic tooth wear identified at a routine examination, or a fractured tooth or restoration. By the time damage is visible, it has usually been occurring for years. Early detection and protection make a significant difference to long-term outcomes.
— TWO CONDITIONS
Bruxism &
TMJ Dysfunction
Both conditions are common, frequently coexist, and both benefit from occlusal splint therapy — though the mechanism and goals differ between them.
01Bruxism
Bruxism affects a significant proportion of adults, with sleep bruxism being more common and often unrecognised until tooth wear or restoration failure prompts investigation. The forces generated during grinding episodes can exceed 250kg/cm² — substantially more than the forces of normal chewing. Prolonged bruxism without protection leads to progressive loss of tooth structure, sensitivity as dentine becomes exposed, and increased risk of fracture.
Bruxism is multifactorial. Stress and anxiety are well-documented contributing factors. Sleep disorders — particularly obstructive sleep apnoea — have a recognised association with sleep bruxism. Certain medications, particularly SSRIs, can induce or worsen bruxism. Management focuses on protecting the dentition from further damage while addressing contributing factors where possible.
02TMJ Dysfunction (TMD)
The temporomandibular joint is one of the most complex joints in the body — functioning simultaneously as a hinge and a sliding joint, used continuously for speaking, chewing, and swallowing. TMD encompasses a spectrum of conditions including myofascial pain (muscle-related), disc displacement, and degenerative joint disease.
Symptoms vary considerably between patients. Some experience primarily muscle pain with minimal joint involvement; others have mechanical joint symptoms — clicking, locking — with or without pain. Acute episodes can include severe limited opening. Most cases of TMD are managed conservatively: splint therapy, physiotherapy, lifestyle modification, and pain management — with surgical intervention reserved for a small minority of refractory cases.
— TREATMENT
The Custom Occlusal Splint —
What It Does and How It's Made
A custom occlusal splint — commonly called a night guard — is a hard acrylic appliance worn over the teeth during sleep. It is the primary and most evidence-supported intervention for protecting teeth from bruxism damage and reducing the muscular load associated with clenching.
The splint creates a flat occlusal plane that distributes the forces of grinding across the entire arch rather than concentrating them on individual teeth or restorations. By altering the jaw's closing position, it can reduce muscle hyperactivity and allow the muscles of mastication to function in a more relaxed state. For TMJ dysfunction, splints can reduce joint loading and allow inflamed tissues to recover.
Hard vs. Soft Splints
Hard acrylic splints are the clinical standard for bruxism and TMD management. They are durable, dimensionally stable, and can be precisely adjusted. Soft (resilient) splints may actually increase clenching in some patients by providing a compressible surface to bite into. At Innova Dental, hard acrylic splints are the default recommendation for bruxism and TMD cases.
How It's Made
Impressions or digital scans of your teeth are taken at your appointment. The splint is fabricated by a dental laboratory to precise specifications — typically taking 2–3 weeks. A fit appointment ensures the splint seats correctly, with adjustments made to the occlusal contacts. A well-fitted splint should be retentive, comfortable, and not cause any tooth displacement over time.
Custom vs. over-the-counter. A professionally fabricated splint is fundamentally different from pharmacy "boil and bite" guards. OTC guards are not made to your specific occlusion, are typically soft, and do not provide the precise occlusal management of a laboratory-made appliance. For regular use, a custom splint is the only appropriate option.
About Night Guards & TMJ Treatment
A night guard — clinically termed an occlusal splint — is a custom-fabricated hard acrylic dental appliance worn during sleep to protect teeth from the effects of bruxism (teeth grinding and clenching) and to manage temporomandibular joint (TMJ) dysfunction. Bruxism generates occlusal forces that cause progressive enamel and dentine wear, tooth fracture, and failure of dental restorations including crowns, veneers, and implant prosthetics. The occlusal splint distributes these forces across the full arch, reduces muscle hyperactivity in the muscles of mastication, and allows the temporomandibular joint to function with reduced loading. TMJ dysfunction (temporomandibular disorder or TMD) is a spectrum of conditions affecting the jaw joint and surrounding musculature, causing pain, limited opening, clicking, and headaches. Conservative management — including splint therapy, physiotherapy, and lifestyle modification — resolves the majority of TMD cases without surgical intervention. Night guards and occlusal splints are provided by general dentists and prosthodontists.— FAQ
Night Guards & TMJ
Questions
Questions about your specific symptoms are best answered at an assessment, where your teeth, jaw, and bite can be evaluated directly.
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Many patients who grind during sleep are unaware of it — bruxism is often identified by a partner reporting audible grinding, or by a dentist noting characteristic wear patterns at a routine examination. Signs include flattened or chipped biting surfaces, unexplained tooth sensitivity, jaw soreness on waking, and morning headaches. If you notice any of these, an assessment will clarify whether bruxism is present and how advanced any wear has become.
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For jaw pain and headaches caused by muscle hyperactivity from clenching — which is common — an occlusal splint can provide significant relief by reducing the load on the muscles of mastication during sleep. Results vary depending on the cause; cases with a significant muscular component respond well to splint therapy, while others involve joint pathology that may require additional management. An assessment will determine the likely contribution of bruxism to your symptoms.
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A well-made hard acrylic splint typically lasts 3 to 5 years for moderate bruxers, though heavy grinders may wear through a splint faster. The splint takes the wear instead of your teeth — which is the point. When the occlusal surface of the splint shows significant wear, it is time to replace it. The splint is checked and adjusted at regular intervals alongside routine dental care.
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OTC guards are not fabricated to your specific occlusion and do not provide the precise fit of a custom appliance. Soft OTC guards can actually increase clenching in some patients. For occasional use when a custom splint is unavailable — while travelling, for example — an OTC guard offers some protection. For regular nightly use, a custom-fitted appliance is the appropriate standard of care.
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For bruxism management, yes — consistent nightly use produces the best outcomes and ensures the teeth are protected whenever grinding occurs. Intermittent use reduces the protective benefit. Compliance is one of the most important factors in splint therapy success, and most patients find the appliance comfortable to wear after a brief adaptation period.
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Coverage varies by plan. Many dental insurance plans provide partial coverage for occlusal splints under the prosthodontic or preventive benefit — typically with a frequency limitation. Our treatment coordinator can prepare a predetermination letter to submit to your insurer before the appliance is fabricated.
— BOOK AN ASSESSMENT
Protecting Your Teeth
Starts Tonight
If you suspect you grind your teeth, or if you have jaw pain, headaches, or unexplained tooth wear, an assessment will give you a clear picture of what is happening and what can be done. A night guard is one of the most cost-effective investments in the longevity of your dentition.