Laura Torrado, DDS

50? Are you implying you are old. ??!!  Fifty is the new 40 !!.For one thing you are planning to eat right until the day you die  so yes, any imporvement on your teeth is worth it . Anything is worth at 50 I have to add .

Invisalign however has a very limited indication : just mimor movement of less than 15 degrees and a few mimlimiters . You will not be able to move teeth that are under a bridge neither. Faster more efficient  movement is achieved wtih brackets like in the 6MonthsSmiles system

laser whitiening is becoming an obsolete way to withen teeth . Right now the market has evolved so much whith whitening products that we are capable of applying a peroxide whithening gel and get results without the need of any type of light . being a laser or a visible light ( zoom) .

Check KOR whitening

No MI paste will not interfere with the whitening results . GC MI Paste contains RECALDENT™ (CPP-ACP) which is made from a natural protein extracted from milk. DO NOT USE IF YOU ARE ALLERGIC TO MILK PRODUCTS. RECALDENT™ (CPP-ACP) acts in a dual manner, by providing a source of calcium and phosphate, while also supplying a soluble format for delivery of these essential minerals to the tooth surface.

If your natural teeth can be realigned there is nothing better than what nature has provided you with . Just  fix what you already  have !!

It is not common but it can happen. Many times bite forces are the reason that a screw in an implant gives . Extra and non axial forces can cause fatigue, and breakage