Join me for a summary podcast exploring the topic of white spot lesions, and up-to-date
research looking at how to manage lesions when they occur, when the right time
is to treat the patient, and what minimally evasive options can be used in clinic. This was an excellent lecture
from
Gayle Glenn earlier this year at the AAO winter meeting.
options are discussed, Fluoride, CPPACP (Mi paste), resin infiltrate and
lesion background WSL
Definition - subsurface deminieralization,
intact outer layer, 1st sign of carious lesions
repair first 6 weeks without use of additional agents
Up
to 6 months spontaneous improvement with good oral hygiene
Recommend
3-6 months monitor after debond: BEFORE
consider additional treatment
Decrease
Increase
Formation
Fl varnish
reduce WSL occuring by 44%:
§ require plaque removal and wire removal
§ Not often used in clinical practice and requires
TREATMENT
Fluoride low dose (toothpaste)
High Fluoride – hyperminerasied surface layer
forms = seal off subsurface layer which remains demineralized. Bishara 2008
Resin infiltration Gray 2002
Remove outer hypomineralised area with 15% HFL
Infiltrate with low viscosity
Arrest lesion – however some demineralisation
Most effective in research (RR:121.50, 95%CI:
MI paste (CPPACP) Frencken 2012
Stabilizes Ca PO4 – ideal of for formed WSL
Creates Ca PO4 reservoir around bracket
Brush above and below bracket or finger
Distributed by the tongue
Avoid eat and drink 30-60 minutes
Effectiveness for reminersation
Evidence unclear – conflicting sustematic
reviews AlBukaiki 2023 no difference,
same year Jiang 2023, it is effective, however exceptionally large range
of values (RR:49.69, 95%CI: 0.87-98.51 and although RCTs, limited to assessing
premolars only and different methods of assessment and duration of treatment.
Wait 3-6 months following removal of braces
Nothing to eat 30-60 minutes
Combination of acid and abrasive particles
Burinsh into enamel with slow speed handpiece
opalustre = 6% HCL + silica (low particle
size, lower concentration with larger particle size than prophy paste = 12-160 particle size 1986 Krol)
Burnished in using a polishing cup and slow
Partly due to variations in protocol
Microabrasion and CPP-ACP proposed idea Ardu
CPP-ACP both sides, with half of mouth also
receiving 1 visit of microabrasion
After 6 months post debonding
Evaluate and repeat up to 8 times
Mi paste group 9.3-8.1 size of lesion –
statistically significant
Microabrasion and Mi paste group
Most improvement immediate after microabrasion
Compared difference of size of the initial
reduction in microabrasion
Microabrasion = significant clinical time
Up to 8 minutes per tooth, can be up to 1 hour
Therefore clinical application
with WSL are usually not great compliers, giving additional products which
require significant compliance, is practising research in isolation.
takes nearly 1 hour, role in clinical practice limited to isolated areas