When it comes to restoring teeth with cuspal involvement onlays and crowns are the usual treatment options because the cuspal areas require extra strength since they are the predominant contributors to masticatory function (chewing). Below are the cited comparative facts from https://www.randwicksmiles.com.au/how-much-braces-australia/ between dental onlay vs crown.
Dental onlay encompasses fitting solid pieces into the tooth’s cavity to cover it up. They help restore teeth functionality without having to restore the entire tooth or take it out. They are put in place to help in chewing and could even be made of porcelain, or gold which was common in the past. Onlays are considered to be more of the scientifically advanced procedure to deal with tooth decay. When the tooth is too compromised, the dentists use adhesion which means a part of the tooth is taken out then porcelain is used to fix the frail areas found in the tooth. When putting onlays, they don’t have to go beneath the gum area to hide their margins since the most advanced only materials look natural and beautiful. Lack of porcelain under the gums makes sure there won’t be any irritation on the gums which could result in a lot of pain.
Crowning is a traditional way of tooth decay repair. The procedure for crowning involves drilling about 75% of the tooth. Most of times drilling continues past the gum line. Most of the times, this results in sore and traumatized gums. After this procedure, the tooth is covered in porcelain or a crown cap made of metal. The material is always cemented on and its edges go below the gums which causes permanent gum irritation that could lead to gum disease.
Disadvantages of crowns
Drilling of the tooth tends to extend down below the gum. Mostly this results in inflammation, gum irritation, bleeding, and all these will compromise your gum health in the future. A large amount of healthy tooth is removed for crowning to take place. It’s unreasonable to drill out more teeth when it already is damaged. A healthy natural tooth is very strong and should be preserved rather than further damaged. Permanently placing the edges of the crown below the gum surface is dangerous. It causes inflammation and permanent irritation. During the procedure, it’s a little difficult for the dentist to see below the gum when sealing the edges in. this could result in germs and bacteria being trapped there and later on causing gum disease.