Abstract:
:This study evaluated whether periodontal ligament (PL) thickness varied with root size and examined the possible influence of this variation on orthodontic mechanics. Measurements were taken of the maxillary left first molar in 54 male Wistar rats. Mean mesial and distal PL thicknesses were compared between the intermediate buccal and mesiobuccal roots using paired Student's t-tests with a 5% significance level. Mean values differed significantly between roots (p < 2.2 × 10(-16)). PL thickness in rats is directly proportional to root dimensions.
journal_name
Braz Oral Resjournal_title
Brazilian oral researchauthors
Cuoghi OA,Tondelli PM,Aiello CA,Mendonça MR,Costa SCdoi
10.1590/s1806-83242013000100014subject
Has Abstractpub_date
2013-01-01 00:00:00pages
76-9issue
1eissn
1806-8324issn
1807-3107pii
S1806-83242013000100014journal_volume
27pub_type
杂志文章abstract::The objective of the present study was to assess the effectiveness of reciprocating instrumentation in disinfecting oval-shaped root canals infected with Enterococcus faecalis. Forty-five human lower premolars were infected with a culture of E. faecalis (ATCC 29212) for 28 days. Five other teeth that were neither cont...
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abstract::Widely used in dentistry, Ti-6Al-4V alloy is difficult to cast and solder, as it frequently exhibits pores inside the structure. This study was conducted to evaluate the effect of joint openings and diameters of laser-welded joints executed in Ti-6Al-4V structures on the presence of pores as checked by radiographic pr...
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