A few millimetres of natural tooth above the gum can make a big difference to how a crown performs. For people travelling from Puslinch, we measure what is there, explain why it matters, and plan a core or post around it.
When a dentist peers at a broken-down tooth and mentions millimetres, they are often judging something called a ferrule. It is the collar of your own tooth, above the gum, that a crown can hug. Having enough of it tends to help a crown cope with chewing, and it shapes almost every decision about how to rebuild.
Beneath that collar sits the core, the material that replaces missing tooth so the crown has a shape to fit. If the tooth has had root canal treatment and too little wall remains to hold the core, a post may be placed into part of the treated canal as an anchor. A post holds; it does not strengthen, and it cannot stand in for the natural tooth a crown should wrap around.
So the first visit is partly a measuring exercise. Dr. Anjum will examine how much sound tooth stands above the gum, the root and its support, and the crown you need. Bring any root canal records or a crown that has come off, and you will leave knowing what the numbers mean for you.
If a post is part of the plan, ask how it relates to the tooth left above the gum. The explanation should rest on what was measured.
When a tooth breaks low, there may not be enough height for a crown to grip natural structure. The dentist checks the root length and the gum and bone around it. A post comes into the discussion only if a dependable crown is still possible.
Repeated loss of a crown, sometimes with its core attached, can point to too little tooth beneath it. Bring every piece. The exam shows what is separating and whether a new foundation can work, or whether another approach is needed first.
After a root canal, the remaining walls may be thin or short. Ask whether a core alone would be enough, whether a post or other step is advised, and how to protect the tooth until the crown is made.
A post does not replace missing height. When there is very little tooth above the gum, the plan may need to address that directly, or reconsider whether the tooth should be restored.
In a suitable tooth, a core gives the crown its shape, and a band of natural tooth gives it something to grip. Together they help the restoration handle everyday chewing. The aim is to restore function while saving as much of your tooth as possible.
Be wary of any plan that relies on the post alone. Without enough natural tooth, even the best post cannot keep a crown performing well. Ask how the root, its support and your bite factor into the outlook.
Patient information: AAE — assessing whether a tooth can be restored
Ask the dentist to show you where the ferrule is, or is not, on your tooth, and how that relates to the post, core and crown. A diagram helps the whole plan make sense.
Every millimetre of healthy tooth matters. Ask how preparation for the crown and any post will conserve it, and whether a simpler foundation could do the job.
The crown’s edge is planned to wrap around the available tooth. Discuss its fit, contour and bite first, then decide what needs to go underneath.
The number of visits depends on how much tooth there is and the crown planned. If you are coming in from Puslinch, ask whether any extra stage is needed and which visits can be grouped.
The dentist checks the height and thickness of the remaining walls, the condition of the old root filling, and the bone and gum around the tooth. Bite and x-rays complete the picture. Mention any history of loose crowns.
If there is too little tooth to grip, options such as a gum procedure to expose more of it may be raised, sometimes with a specialist. You should also hear whether a post is advised, the material, its limits and a full estimate.
When a post is needed, a channel is shaped inside the treated canal while some root filling stays at the tip to keep it sealed. The core is then built or fitted, ready to receive a crown.
The crown is fitted to wrap the available tooth, then adjusted for contacts and bite. Confirm home care and the follow-up. If a temporary covers the tooth for a while, ask how to look after it.
What to do depends on whether a temporary or final crown is on. Let us know if any advice is hard to manage, and we will help you find another approach.
Avoid hard, sticky and chewy foods on the restored side. A short tooth under a temporary is especially vulnerable, so keep the final crown appointment and call ahead if you must change it.
That collar of natural tooth is where decay or gum problems can start. Brush and floss there every day, and ask for a demonstration if it is hard to reach.
A crown that rocks, a bite that feels different, or a chipped edge all warrant a call. Leave it in place rather than testing it. Keep anything that comes away.
The language of measurement can feel technical. These short answers explain why it matters for your restoration.
Book an appointment at our Bronte Street practice for a root-treated tooth that has broken down or a crown that keeps loosening. Bring any records and pieces, and we will explain what the remaining tooth can support.
If a crown has come off and the tooth hurts or the gum swells, please call us. Online requests are for non-urgent bookings.
