Any composite detector available in the market that one can use to avoid unnecessary removal of healthy tooth structure especially when shade matching was done when placing the restoration?
Should carving anatomy be avoided in the posterior teeth to ease the replacement?
Thanks
If replacing the whole composite is necessary because of secondary decay, the restoration area facing dentin are often easy to remove.
Otherwise repairing of "well bonded" restoration may be indicated ... sandblasting + silan + bond
I find your question interesting Ahmad, and I think there's definitely an argument for purposefully choosing a shade different to the natural tooth structure in posterior or non-visible areas for ease of detection and removal. I dislike the "fancy" occlusal staining added to make direct or indirect restorations resemble natural teeth for the same reason! I would have thought the purpose of aesthetic dentistry is to camouflage for the sake of other lay individuals, not to make it harder for dentists to do a minimally invasive job.
all types invasive techniques ,good knowlege andtype of materials and tools for removal very important
If you were to use a laser you can set the power level below that which removes healthy dentine (ablation threshold around 150mJ with Erbium lasers). Composite that is hit by the laser takes on a frosted look that is very different to dentine and can be reduced in thickness to the point where it can often be flicked off with a scaler or Hollenback.
i think, the best is to use laser (Er:YAG or Er:YSSG) the coefficient of absorption in composite is differ than that of the tooth structure. otherwise mechanically which it is very difficult to avoid touching the tooth.
Use of Erbium laser is good option for removal for composite restoration with a slightly lower power setting than used for normal tooth structure. Also I would like to restore purposefully with a different shade than the tooth in non accessible areas
1. I use an (already-shortened/blunt) ultrasonic scaler tip to differentiate composite material from tooth substance. ultrasonic scaler would produce a metallic discoloration on resin restoration. very few successful attempts in dislodging well-bonded restoration using the scaler but, when material is thin enough following removal, it can dislodge rather easily.
2. carving is kept at minimal, providing smooth surface cusp construction for posteriors to avoid uneven masticatory force distribution. and of-course, as many suggested, use different shade.
No composite detector is available in the market. The use of colored composite is probably a solution.
Is plain and easy use a dark light like the ones that you use to check bills
Such buy anyone from amazon and use it close to the tooth and you will see the difference
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