What is a subgingival margin?

What is a subgingival margin?

Subgingival margins very often mean bleeding gums, isolation problems, and the absence of a margin in enamel. With direct restorations, when margins are subgingival, placement of a matrix band, achieving isolation, and removing any excess material all become considerably more complex.

What is Equigingival margin?

Equigingival Margins: Equigingival margins indicate you are remaining even with the tissue to place the margin. Advantages: Similar to supragingival margins, it’s easy to impress and finish equigingival margins because you are not going below the tissue.

How do you do subgingival scaling?

For subgingival scaling with hand instruments, use a subgingival curette (e.g. Gracey curette SG 11/12 or 13/14). Place the blade at 45°-90° to the root surface and pull firmly against the tissue to remove as much debris and chronically inflamed tissue as possible.

What’s the difference between subgingival and Supragingival?

The parts of your hand and wrist that extend visibly outside the sleeve would be considered supragingival (above the gumline), whereas anything unseen below the sleeve would be considered subgingival (below the gumline).

How can I make my crown better?

Whether you have one or several crowns, following these five simple tips can help ensure your crowns provide you with years of beautiful smiles.

1. Avoid sticky and hard foods.
2. Brush and floss to keep the tooth healthy.
3. Kick your bad habits.
4. Use a night guard.
5. See the dentist regularly.

What is subgingival scaling?

Subgingival Scaling is the process by which a dentist removes the calculus deposits underneath the gum line. Using a fine-tipped scaling device, the dentist will remove the deposits and smooth the root surfaces, so the gums can reattach.

How do you clean a subgingival?

The two most common needs for subgingival treatment are periodontitis and gingivitis. A deep cleaning method called scaling and root planing cleans tartar out of pockets that have formed between the tooth and gum. These are perfect breeding ground for bacteria, which leads to infection if not removed.

What should I know about preparing a PFM Crown?

Remember, the technician must be able to section the die, so there has to be enough space between the prepared tooth and other teeth. Always speak with your lab if a case varies or a patient has special circumstances. Prep guidelines may vary, especially when a PFM crown is part of a precision attachment case.

When preparing posterior teeth for PFM crowns depth holes are created?

When preparing posterior teeth for PFM crowns, depth holes are created in the occlusal surface to facilitate the creation of occlusal depth cuts. Once these depth cuts have been completed, the occlusion can be reduced and a lingual chamfer and a buccal shoulder are created.

How deep should the subgingival margin extend?

I personally have two rules when it comes to subgingival margin placement: Rule 1: If probing depth is 1.5 mm or less, extend .5 to .7 mm below tissue. When patients have less than 1.5 mm of sulcus depth, you have a very small risk of recession.

How deep should my margins be placed after a gingivectomy?

If the gingivectomy would result in unacceptable gingival levels, I usually plan on putting my margin below tissue half the depth of the sulcus (for a 3 mm sulcus, 1.5 mm below tissue). By doing this, if recession occurs, it will most likely stop before it exposes where the margins are placed.