Sara Ahmed Mahmoud

AIM: To assess the effect of four different children's drinks on color stability of resin dental composites.

STUDY DESIGN: A total of one hundred and twenty specimens were prepared from Grandio SO, Filtek Z350 XT and Filtek Z250 XT (forty specimens each). Specimens were thermocycled, then each group was further subdivided into four subgroups (n=10) according to the immersion media which were chocolate milk, mango juice, orange fizzy drink, and water (control). The initial color parameters of each specimen were recorded before immersion (baseline) and color change values were recorded three and seven days after immersion in each solution using a digital spectrophotometer. Atomic force microscope was used to measure the surface roughness in randomly selected samples after one week immersion in children's drinks.

RESULTS: All the children's drinks produced color changes in the examined resin dental composites, yet there was no statistical significant difference between the effects of tested drinks on the color changes (mean ΔE) of the three different dental composites (P>0.05).

CONCLUSIONS: All tested children's drinks caused clinically unacceptable color changes of the tested resin dental composites. Immersion in chocolate milk and orange fizzy led to the highest color changes in the tested resin dental composites.

Local anesthesia forms the backbone of pain control techniques and is necessary for a painless
dental procedure. Nevertheless, administering a local anesthetic injection is among the most
anxiety-provoking procedures to children. This study was performed to compare the efficacy
of different distraction techniques (passive, active, and passive-active) on children’s pain
perception during local anesthesia administration. A total of 90 children aged four to nine years,
requiring inferior alveolar nerve block for primary molar extraction, were included in this study
and randomly divided into three groups according to the distraction technique employed during
local anesthesia administration. Passive distraction group: the children were instructed to listen
to a song on headphones; Active distraction group: the children were instructed to move their
legs up and down alternatively; and Passive-active distraction group: this was a combination
between both techniques. Pain perception during local anesthesia administration was evaluated
by the Sounds, Eyes, and Motor (SEM) scale and Wong Baker FACES
Pain Rating Scale.
There was an insignificant difference between the three groups for SEM scale and Wong Baker
FACES Pain Rating Scale at P=0.743 and P=0.112 respectively. The examined distraction
techniques showed comparable results in reducing pain perception during local anesthesia
administration.