Clinical Study

Sialometry of Upper Labial Minor Glands: A Clinical Approach by the Use of Weighing Method Schirmer’s Test Strips Paper

Table 5

Comparison between the present trial and former studies of salivary flow of minor salivary glands under no stimulation.

Study
Shern et al.* 1990 [20]Sivarajasingam and Drummond 1995 [17]Eliasson et al. 1996 [21]Lee et al. 2002 [22]Eliasson et al. 2009 [23]This study

Method PeriotronPeriotronPeriotronPeriotronPeriotronSchirmer test strip
Total of participants149912751142144

GroupsNormoNormoMild hypo Severe hypoNormoMild hypoLow whole secretionNormoMild hypoSevere hypo

UWSa 0≥0.2<0.2<0.2
SWSa>1.0>1.0<1.0
Age (mean age)3717 to 8122 to 89 (55)18 to 74 (44)18 to 82 (56)18 to 88 (48)
SmokersSome SomeSome
Fasting for collection (hours)1222
Time collectionMorning2 to 5 p.m.8 to 12 a.m.8 to 11 a.m.8 a.m. to 1 p.m.8 to 10 p.m.
Period of collection (seconds)3030Different/site30Different/site60

Mucosa sites NormoMild hypo Severe hypoNormoMild hypoLow whole secretionNormoMild hypoSevere hypo

PS
ULS
LLS
BMS 12.36 ± 3.06
LMS

The mean value from the two collections was used.
Did not collect UWS to distinguish normosalivators from severe hyposalivators or hyposalivators to compare those values with the secretion values of minor salivary glands.
Mild hyposalivation was considered <0.2 for UWS and 1.0 mL/min for SWS; low whole saliva secretion as <0.2 for UWS and <1.0 mL/min for SWS.
PS: palatal saliva; ULS: upper labial saliva; LLS: lower labial saliva; BMS: buccal mucosal saliva; LMS: lingual mucosal saliva.
aValues are expressed in milliliter per minute (mL/min).
bValues are expressed in microliter per square centimeter per minute (μL/cm2/min); ± standard deviation.