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What a Dark Edge Around an Old Silver Filling Means

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A dark line around an old silver filling is common, and it does not by itself mean the filling has failed. The discoloration usually comes from the metal reacting slowly with saliva at the edge, a different process than new decay forming beneath it.

Why the Metal Darkens at the Margin

Amalgam blends silver, tin, copper and a mercury into a filling material that hardens inside the tooth. Over years of chewing and contact with saliva, the outer edge of that metal can tarnish and pick up a gray or black tint, much the way silverware darkens with age. That surface change happens on its own and does not necessarily mean the seal between the filling and the tooth has broken.

What matters is whether the tooth underneath the filling has stayed intact. A tarnished edge on a filling that still fits tightly is a cosmetic detail. A tarnished edge next to a soft spot, a gap, or a rough ridge is a different situation. A dentist needs to look at it directly, not guess from the color alone.

How Long an Amalgam Filling Is Supposed to Last

Silver fillings often last many years, and how long one holds up depends on its size, the bite on that tooth and daily care. A filling in a molar that takes heavy chewing pressure every day may wear differently than one in a tooth that does less work. Age alone does not tell a dentist whether a filling still fits the tooth the way it did on day one.

That same review lists a few concrete signs to watch for beyond color. A rough or sharp edge you can feel with your tongue, food that keeps catching at the same spot, or a filling that feels loose when you bite down. Those point to an actual change in the material itself, not just its surface.

Why the Color Alone Rarely Settles It

Dentists are generally cautious about pulling out a filling that is otherwise doing its job. One patient guide to fillings notes that dentists are advised against replacing a filling for appearance alone. Removing sound filling material usually means removing some healthy tooth structure along with it. A dark edge, on its own, is cosmetic. Replacing a filling that still seals the tooth trades one small issue for a larger one: a bigger hole to refill.

This is why an exam matters more than a mirror. A dentist checks the margin with an explorer to feel for a ledge or a gap. Then an x-ray shows whether decay has started to form in the layer between the metal and the tooth, something a dark line on the surface cannot show on its own.

What the X-ray Actually Decides

An x-ray of an old filling is looking for one thing: a shadow at the margin where the seal has opened. That gap is where bacteria get underneath the metal and decay starts to spread, invisible from the surface. If the image is clean and the filling still feels solid, it can usually stay in place, color and all, until it is due for its next routine check. A gap or dark area spreading under the metal is what leads to a new filling or a crown. The stain by itself usually does not.

It is reasonable to let a stained, intact filling wait for your next scheduled cleaning. Call sooner if the tooth has started catching food in a new way, or if a rough edge has appeared where there wasn’t one before. The same goes for pressure or sensitivity when you bite down on that side.

When a Filling Is Actually Replaced

Once decay or a broken seal shows up on the x-ray, the tooth usually needs more than a patch. Depending on how much of the tooth is still sound, a dentist may place a new filling or recommend a crown that covers and protects what is left of the tooth structure. That decision is made case by case, after the dentist has seen what the x-ray shows underneath the metal.

For a family practice handling that kind of exam day to day, this is routine work. Smiles By Design, a general dentistry practice in Heber City, Utah, lists general dental appointments, including the exams and x-rays behind decisions like this one, on its services page at smilesbydesignutah.com.

The Decision That Actually Needs Making

A dark edge on an old silver filling is worth mentioning at your next cleaning. It rarely calls for an emergency visit on its own. The tooth underneath, confirmed by an x-ray rather than a guess, is what decides whether that filling stays or gets replaced.

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Beauty

Jaw Clicks But Doesn’t Hurt: Ignore It or Get It Looked At?

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A clicking jaw with no pain usually doesn’t call for treatment right away. The click is simply the sound of the disc inside the joint shifting as the jaw opens and closes. Many people live with it for years without it ever becoming a problem. The real decision is whether to keep watching it or mention it at a dental visit.

What’s actually making the sound

The clicking sound has a straightforward mechanical explanation. Understanding it is the first step in knowing whether to just keep watching it or get it looked at. The jaw joint, the temporomandibular joint, sits just in front of each ear and works like a hinge with a small cushioning disc inside it. When that disc slips slightly out of its usual position, it snaps back as the mouth opens wider. That shift produces the pop or click people notice when they yawn, chew, or talk for a while. It’s a mechanical sound, not a sign of damage by itself. A joint can click for years with the disc simply riding a little differently than it used to. The surrounding muscles and ligaments adapt around it, often without ever causing discomfort.

Why no pain changes the calculus

A joint can adapt to a shifted disc without discomfort. Because of that, pain, not the click itself, is usually what turns a joint sound into a problem worth addressing. Clicking alone, without soreness, without the jaw catching or locking, and without morning stiffness, usually means the joint has found a stable way of moving. It’s a slightly unusual pattern, but a stable one. Dentists who see these joints regularly generally don’t treat sound in isolation. Intervening on a joint that isn’t causing trouble can introduce new issues. A bite guard, for example, can change how the teeth meet when nothing needed correcting. For a click without pain, the usual approach is to watch it rather than act on it.

What would move it from “watch” to “check”

Watching is the right call until the picture changes. A few specific developments are worth paying attention to: soreness around the ear or jaw muscles, the jaw catching partway open or closed, and discomfort when chewing tougher foods. Headaches clustering around the temples on the same side as the click are worth noting too. Any of those marks a different picture than sound alone. A bite that suddenly feels off is also worth mentioning at a regular dental visit. So is a sense that the teeth meet differently than they used to. There’s no need to wait for it to resolve on its own. None of these on their own mean something serious is happening, but together they’re the kind of pattern worth having a dentist look at.

What a visit can tell you that waiting can’t

A dental visit exists to sort through exactly those kinds of changes. A dentist examining a clicking jaw checks range of motion and listens for where in the movement the click occurs. They also ask about habits that load the joint, like clenching, teeth grinding, or chewing gum for long stretches. A click that happens early in opening often has a different cause than one that happens near full opening. The two can call for different approaches. That’s why an exam replaces guessing with an actual look at the joint. Farmington patients who want that kind of evaluation can see what’s involved through the TMJ page at MVP Dental. It lays out how the joint is assessed and what options exist if treatment turns out to be warranted. Seeing a dentist about a clicking jaw doesn’t commit anyone to treatment.

The habits that matter regardless

Whether or not a visit ever leads to treatment, a few habits help the joint either way. Cutting back on wide yawns and avoiding all-day gum chewing are reasonable steps for almost anyone. So is noticing whether stress shows up as a clenched jaw during the day. That holds whether the jaw clicks or not. These aren’t fixes in themselves, but they reduce the load on a joint that’s already working a little differently than average. They also cost nothing to try. For a jaw that’s only clicking, that kind of low-effort attention is often enough while the situation is simply being watched.

Making the call

Put together, a click without pain is information, not an emergency. Most people can reasonably choose to keep an eye on it rather than schedule a visit specifically for it. The decision tips toward getting it checked the moment anything else joins the click. That includes discomfort, limited opening, or a change in how the bite feels. Until then, noticing the sound and tracking whether anything changes is a reasonable way to handle it.

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Beauty

Crowded Teeth or a Bad Bite: The Difference That Decides Invisalign or Braces

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Crowding is a space problem: there is not enough room for every tooth to sit flat. A bite problem is a position problem: the upper and lower teeth do not meet the way they should when the jaw closes. That distinction, more than looks or convenience, usually decides whether Invisalign or traditional braces is the better tool for the job.

Crowding Is About Space, Not Just Appearance

Crowded teeth happen when the jaw does not have enough length to hold every tooth in its proper position. Teeth twist, overlap, or push forward out of line as a result. It is the most common reason adults ask about straightening their teeth. Cases range from a single tooth sitting slightly rotated to a front row that looks stacked two deep. Mild to moderate crowding is often a matter of creating small amounts of space and guiding teeth into it in a fairly predictable sequence.

That predictability matters because it is exactly the kind of movement a series of clear aligner trays is built to handle. Each tray in an Invisalign series nudges teeth a small, controlled distance before the next tray takes over. That gradual, tooth-by-tooth shifting suits what crowding usually requires.

A Bite Problem Is a Different Kind of Puzzle

Crowding explains why teeth overlap or twist. It does not explain why some mouths do not meet correctly when the jaw closes, and that is a separate problem with its own fix. An overbite, underbite, crossbite, or open bite is not really about individual teeth being out of place. It is about how the upper and lower arches meet, or fail to meet, when a person closes their mouth. Some of this is dental, meaning the teeth themselves are tipped or tilted wrong. Some of it involves the jaws, which is a more structural issue. The two causes can look similar from the outside but call for different amounts and directions of force to correct.

Traditional braces bond a bracket to each tooth and thread a wire through them. That setup can apply pressure in more directions at once, including the rotational and vertical movements that many bite corrections need. That is part of why braces have historically been the more dependable option for a true bite problem, as opposed to simple crowding. Aligner technology has improved, but that history still holds for the harder cases.

Why the Line Between the Two Isn’t Always Clean

Crowding and bite problems are described here as two separate categories, but few mouths fit neatly into one or the other. A patient with crowded front teeth may also have a mild overbite. Someone with a crossbite on one side might otherwise have well-spaced teeth. Modern aligner trays can include small tooth-colored attachments that give them more grip for rotating or tipping a tooth. That has pushed the range of what Invisalign can treat well beyond crowding alone. But the overlap cuts both ways. A case that looks like simple crowding can carry a bite component that still needs addressing. That is why mixed cases get sorted out with a closer look rather than a guess at which category a mouth falls into.

This is why the honest answer to “which one do I need” is rarely a guess made from a mirror. It takes a look inside the mouth, not just at it.

How That Look Actually Happens

A digital scan of the teeth and bite gives a far more exact picture than a visual check alone. It shows how the arches line up and where the crowding or the bite discrepancy actually sits. Dr. A.J. Proctor and Dr. Nathan Tanner use an iTero intraoral scanner for this kind of planning. It replaces the old putty impression with a digital model that can be reviewed on a screen during the same visit. Patients who need a clearer view of jaw structure may also get a cone beam CT scan. It adds a three-dimensional image that a flat x-ray cannot provide.

That combination is a digital scan of the teeth plus imaging of the jaw when needed. It is what separates a crowding case suited to aligners from a bite problem that needs the control braces offer. Dr. Proctor and Dr. Tanner provide Invisalign at Smiles By Design in Heber City. Patients from Midway, Park City, Kamas, and surrounding Wasatch County communities come in for exactly this kind of assessment. It happens before any tray or bracket is chosen. For a Spanish-speaking patient or family member, staff at the practice are able to walk through the same scan results in Spanish.

Weighing Comfort Against the Specific Problem

It is fair for comfort and appearance to matter once the scan and exam identify what is actually going on. Clear trays are easier to keep clean and easier to forget about during the day, and that matters for anyone weighing months of treatment. But comfort is a secondary question. The primary question is mechanical. Does this mouth need the kind of broad, multi-directional correction that wires provide? Or is it a spacing problem that a sequence of trays can resolve on its own? Starting from the wrong assumption, treating a bite problem as if it were simple crowding, is how people end up switching approaches partway through.

The real choice is not Invisalign versus braces in the abstract. It is whether a mouth has a space problem, a bite problem, or some mix of both. That answer comes from a scan and an exam, not from a preference for trays over wires.

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Beauty

What happens in a TPI screen, test by test

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A TPI screen is a set of short physical tests that checks whether a golfer’s body can make the movements a swing asks for. It takes the hips, the upper back, the shoulders, balance and core control one at a time, scores each one, and then lines the results up against what the swing is doing on video. The output is a short, ranked list of physical limits, each paired with the exercise that addresses it.

Before any test: the history

The screen opens with questions rather than movement. The clinician asks about past injuries and surgeries, where anything hurts and when, how often the player practices and plays, and what they want from the game: more distance, a more repeatable strike, or simply finishing eighteen holes without a stiff back the next morning. An old knee surgery or a disc problem changes which tests are safe to run and how the results are read, so this part is not a formality.

The tests, one by one

The tests are standardized by the Titleist Performance Institute so that two clinicians would score the same player the same way. Each isolates one joint or one skill rather than the whole swing. The ones most golfers meet include:

  • Pelvic tilt. Standing in golf posture, the player rocks the pelvis forward and back without moving the upper body. Trouble here often shows up as a loss of posture through impact.
  • Pelvic rotation. The player turns the hips while keeping the shoulders still. If the hips and chest can only move together, the swing tends to borrow rotation from somewhere else.
  • Torso rotation. The reverse: the player turns the chest while the hips stay quiet. Limited upper-back rotation is one of the common reasons for a short, flat shoulder turn.
  • Overhead deep squat. Arms overhead, the player squats as low as possible. It checks ankle, hip and upper-back mobility at once, and it is a frequent clue behind early extension, where the hips thrust toward the ball on the downswing.
  • Single-leg balance. Eyes open, then eyes closed, on each leg. A golfer who cannot stand steadily on the lead leg has trouble finishing in balance.
  • Toe touch and bridge with leg extension. These look at hamstring length, hip-hinge control and the strength of the glutes and core that hold posture through the swing.

Each test is scored as a pass or a limitation, and the clinician notes which side is more restricted. A right-handed golfer who cannot rotate well into the lead (left) hip is a different case from one who cannot rotate into the trail hip, even though both might be described as having stiff hips.

Connecting the results to the swing

The second half of the session puts the test results next to the swing, usually with video taken during the same visit. TPI groups common swing characteristics into named patterns such as early extension, sway and slide. When a limitation and a swing pattern line up, the screen has found something worth acting on: for example, a lead hip that will not rotate inward paired with a swing that slides toward the target instead of turning. When they do not line up, that is useful too, because it points back toward technique rather than the body.

The result is a short list of limitations in order of priority, with a corrective exercise for each, rather than a general stretching routine. Most players leave with three or four exercises, not fifteen.

Where a lesson fits

A screen does not replace a golf professional. A lesson changes how a player swings; a screen finds out whether the body can make the change being asked of it. A player who can hold the right position slowly but loses it at speed often has a timing problem that coaching solves. A fault that survives lesson after lesson is the case for a screen, and plenty of golfers end up doing both.

Who should run it

Golf instructors, fitness professionals and physical therapists can all hold TPI certification. The difference is what happens when a limitation turns out to be a medical question: pain with rotation, a past surgery, or numbness that travels down a leg. A licensed physical therapist can assess that directly. This matters most for players over 50 and anyone returning to golf after an injury.

Some physical therapists run the screen where the player actually plays or trains. Collier Concierge Physical Therapy and Performance, whose golf work is led by a TPI Medical Level 2 certified physical therapist, describes its in-home and on-course version of the assessment at collierconciergept.com.

What to bring and what to expect afterward

Wear clothes that allow a full squat and turn, and bring the clubs and shoes you play in if the swing is going to be filmed. Expect the tests themselves to feel easy or awkward rather than strenuous. Afterward, the exercises are the real work: a limitation found in one session is changed over weeks of practice, and a recheck of the same tests shows whether it moved.

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