Hi. I've a crown on my last lower moler not (wisdom tooth). It's not covering all the tooth, some tooth walls are intact. it's come off a couple of times. The dentist re fit it and it came off again a month later. I was eating jelly sweets at the time, not toffee though. I've refit it with using a paste type kit from Lloyds pharmacy and it feels as good as before. Will this kit secure it as well, and also protect it from any bacteria?