I always try to smooth out a chipped tooth and use illusion to reshape it. I will angle the enamel ever so slightly. The problem with bonding edges is that they don't hold and the bonding can fail quite quickly. You do want your smile balanced so you really need to see the opposite...
Hi Sonic303, Sorry that I am now just seeing your question and assume that your loose tooth has received treatment. Your problem is common to many people. Also your reluctance is also common in that 40% of the population does not see a dentist regularly. Many of those people avoid the dentist...
I would recommend having your dentist perform dental bonding which would add the missing portion of your tooth back and match the tooth next to it. This is typically very easy and painless. This bonding will need to be replaced ever once in a while due to staining that can occur....