Abstract：
:Debonding rates of 164 resin-bonded prostheses (RBP) placed from 1974 to 1985 were examined at recall. The yearly debond rates were calculated, the cumulative probability of failure was determined for the debonded RBPs, and Weibull distribution parameters were determined. For perforated prostheses, there was a high initial debond rate, followed by slowly decreasing rates for about 5 years. Increasing rates after 5 years indicated the beginning of wear-out. The Weibull parameters for the wear-out period of the perforated prostheses were: characteristic life = 128 (SE = 2) months, modulus = 1.27 (0.06), and threshold parameter = 0. Data were available for etched frameworks for 6 years and showed decreasing debond rates during this time. The characteristic life of the etched bridges was 318 (84) months. The cumulative failure data were also modeled with a cubic polynomial distribution that resulted in a U-shaped hazard function.
journal_name
J Dent Resjournal_title
Journal of dental researchauthors
Boyer DB,Williams VD,Thayer KE,Denehy GE,Diaz-Arnold AMdoi
10.1177/00220345930720081401subject
Has Abstractpub_date
1993-08-01 00:00:00pages
1244-8issue
8eissn
0022-0345issn
1544-0591journal_volume
72pub_type
杂志文章abstract：:Dental enamel formation is a remarkable example of a biomineralization process. The exact mechanisms involved in this process remain partly obscure. Some of the genes encoding specific enamel proteins have been indicated as candidate genes for amelogenesis imperfecta. Mutational analyses within studied families have s...
journal_title：Journal of dental research
pub_type： 杂志文章,评审
doi：10.1177/154405910508401206
更新日期：2005-12-01 00:00:00
abstract：:Soft lining materials undergo two processes when immersed in water. Plasticizers and other soluble materials are leached into the water, and water is absorbed by the polymer. The balance between these two processes affects both the compliance and dimensional stability of the materials. ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345830620061601
更新日期：1983-06-01 00:00:00
abstract：:To understand the role of betel quid (BQ) in the pathogenesis of oral submucous fibrosis (OSF) and oral cancer, we used DNA damage, cytotoxicity, and cell proliferation assays to study the pathobiological effects of aqueous extracts of three BQ constituents [betel nut (Areca catechu, BN), inflorescence of Piper betle ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345940730050501
更新日期：1994-05-01 00:00:00
abstract：:Pieces of fresh rat incisor enamel were extracted with various buffer solutions and prepared for electron microscopy. I observed partial or complete removal of organic constituents, shrinkage of rods and interrods, separation of stippled material from the enamel, and partial decalcification. The results modify the con...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：
更新日期：1982-12-01 00:00:00
abstract：:Tempering of dental porcelain by forced convective cooling in air has been shown previously to inhibit the sizes of cracks induced in porcelain surfaces. However, the depth of compressive stress that is produced by tempering of feldspathic porcelain has not been determined. It can be assumed that the potential of temp...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345910700020701
更新日期：1991-02-01 00:00:00
abstract：:Nearly 100% of patients experience trauma to the trigeminal nerve during orthognathic surgery, impairing sensation and sensory function on the face. In a recent randomized clinical trial, people who performed sensory re-training exercises reported less difficulty related to residual numbness and decreased lip sensitiv...
journal_title：Journal of dental research
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1177/154405910708600616
更新日期：2007-06-01 00:00:00
abstract：:Angiogenesis and biomineral substrates play major roles in bone development and regeneration. We hypothesized that macroporous scaffolds of biomineralized 85:15 poly(lactide-co-glycolide), which locally release vascular endothelial growth factor-165 (VEGF), would direct simultaneous regeneration of bone and vascular t...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/154405910408300304
更新日期：2004-03-01 00:00:00
abstract：:Clinical evidence is lacking regarding the influence of the amount of residual coronal dentin and of post placement on the failure risk of endodontically compromised teeth. The aim of this prospective clinical trial was to assess whether these factors significantly affect the two-year survival of restored pulpless pre...
journal_title：Journal of dental research
pub_type： 杂志文章,随机对照试验
doi：10.1177/154405910708600808
更新日期：2007-08-01 00:00:00
abstract：:Genetic studies of early-onset periodontitis (EOP) are hampered by several factors. These include delayed onset of the trait, an upper age limit of expression of the disease, and lack of phenotypic information for edentulous family members. Segregation analyses of families with EOP support a major locus hypothesis but...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345000790031201
更新日期：2000-03-01 00:00:00
abstract：:The objective of this study was to assess the relative effects of age and oral hygiene on the progression of periodontitis by estimating incidence from age-specific prevalence. This study analyzed data from a representative national sample of 14,690 dentate Americans, aged from 15 to 74, seen in the first National Hea...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345870660010201
更新日期：1987-01-01 00:00:00
abstract：:Impacted human third molar teeth were examined, both with the light and electron microscope, to determine the extent of the odontoblast process. The odontoblast process was found to be limited to the inner third of coronal dentin and inner half of mid-root dentin. ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/002203457905800412011
更新日期：1979-11-01 00:00:00
abstract：:Periodontitis is increasingly associated with increased risk of cardiovascular and other systemic diseases. The Gram-negative anaerobe, Porphyromonas gingivalis, is a key periodontal pathogen, and several lines of evidence link the presence of this bacterium in the circulation with vascular disease. The outer membrane...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034520943187
更新日期：2020-12-01 00:00:00
abstract：:The etiology and pathogenesis of craniofacial birth defects are multifactorial and include both genetic and environmental factors. Despite the identification of numerous genes associated with congenital craniofacial anomalies, our understanding of their etiology remains incomplete, and many affected individuals have a...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034520969109
更新日期：2020-11-06 00:00:00
abstract：:Selective recruitment of periodontal ligament cells to a previously exposed root surface is believed to enhance periodontal regeneration. It has been hypothesized that competition from gingival fibroblasts may reduce the potential of periodontal regeneration. We compared the migratory responses of PDL cells and gingiv...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345960750041401
更新日期：1996-04-01 00:00:00
abstract：:The effect of pH on the growth and proteolytic activity of the type strain and fresh isolates of Porphyromonas gingivalis and Bacteroides intermedius was investigated. B. intermedius strains grew with and without glucose at a pH as low as 5.0. These bacteria grew almost as well as Streptococcus mutans at pH 5.0 and be...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345900690060801
更新日期：1990-06-01 00:00:00
abstract：:Glass-ionomer cements (GICs) are regarded as aqueous gels made up of polyalkenoic acid salts containing ion-leachable glass fillers. The consequence of water permeation across the GIC-dentin interface is unknown. This study used SEM, field-emission/environmental SEM (FE-ESEM), and TEM to examine the ultrastructure of ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/154405910408300403
更新日期：2004-04-01 00:00:00
abstract：:In a three-year study of 145 adolescent males in a boarding school in Wisconsin, there were no statistically significant differences in dental caries experience between a group consuming phosphates added to pre-sweetened and non-presweetened ready-to-eat cereals, and the control group, or between cereal eaters and non...
journal_title：Journal of dental research
pub_type： 临床试验,杂志文章
doi：10.1177/00220345790580090201
更新日期：1979-09-01 00:00:00
abstract：:Antidromic stimulation of sensory nerves has been shown to increase blood flow in the tissue they innervate. This study was designed to determine if antidromic vasomotor responses occur in feline dental pulp and if they are mediated by branched axons supplying both tooth pulp and gingiva. Dynamic changes in pulpal blo...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345940730120201
更新日期：1994-12-01 00:00:00
abstract：:Biological evaluation procedures for the acceptance of new dental materials include testing for mucous membrane irritation and inflammation, with the hamster cheek pouch used as a model system. Previous reports have indicated both a low 14-day implant retention rate and poor differentiation between positive and negati...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345860650111801
更新日期：1986-11-01 00:00:00
abstract：:Periodontal diseases are initiated by bacteria that accumulate in a biofilm on the tooth surface and affect the adjacent periodontal tissue. Systemic diseases such as diabetes, rheumatoid arthritis (RA), and systemic lupus erythematosus (SLE) increase susceptibility to destructive periodontal diseases. In human studie...
journal_title：Journal of dental research
pub_type： 杂志文章,评审
doi：10.1177/0022034518805739
更新日期：2019-02-01 00:00:00
abstract：:During the polymerization of multifunctional monomers for dental restorations, typical final double-bond conversions range from 55 to 75%. The low conversion results in a large amount of extractable monomer, reduced adhesion to the filler, and the potential for increased swelling. In this work, the ability to increase...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345960750081301
更新日期：1996-08-01 00:00:00
abstract：:A single logistic curve was fitted to serial data for three cranial base lengths (S-N, Ba-N, and Ba-S) in 33 boys and 26 girls. Elongation during pubescence plus adolescence is greater in boys than girls for each length. The maximum rate of pubescent elongation occurs earliest in Ba-N. There are no consistent sex diff...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345770560071501
更新日期：1977-07-01 00:00:00
abstract：:Although it is known that diabetes impairs oral wound healing, relatively little is known about the cellular parameters affected, particularly in connective tissue. This study investigated the hypothesis that diabetes impairs connective tissue formation in healing gingiva, and that impaired healing is associated with ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034510362960
更新日期：2010-06-01 00:00:00
abstract：:Cementum is known to be growth-hormone (GH)-responsive, but to what extent is unclear. This study examines the effects of extremes of GH status on cementogenesis in three lines of genetically modified mice; GH excess (giant), GH antagonist excess (dwarf), and GH receptor-deleted (GHR-KO) (dwarf). Age-matched mandibula...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/154405910408300107
更新日期：2004-01-01 00:00:00
abstract：:Estrogen deficiency results in disruption of maxillary alveolar bone microarchitecture. Most of the actions of estrogen in long bones occur via estrogen receptor α (ERα). However, the function of ERα in the maxillary bone has not been defined. We aimed to investigate the role and underlying mechanisms of ERα in the ph...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034516633154
更新日期：2016-06-01 00:00:00
abstract：:Potentially significant associations between periodontal disease and chronic kidney disease (CKD) have been reported in recent studies. The aim of this cross-sectional study was to investigate the association between serum antibody to the periodontal pathogen Porphyromonas gingivalis (P. gingivalis) and CKD in 215 Jap...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034512455063
更新日期：2012-09-01 00:00:00
abstract：:The tongue exerts crucial functions in our daily life. However, we know very little about the regulatory mechanisms of mammalian tongue development. In this review, we summarize recent findings of the molecular and cellular mechanisms that control tissue-tissue interactions during tongue morphogenesis. Specifically, c...
journal_title：Journal of dental research
pub_type： 杂志文章,评审
doi：10.1177/0022034511434055
更新日期：2012-06-01 00:00:00
abstract：:Previous studies have clearly established the down-regulating effect of a sucrose-rich diet on primary dentinogenesis in rat molars. Earlier observation of the negative effect of a high-sucrose diet on a parotid function involved in the control of intradentinal solute movement led us to hypothesize that parotid gland ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/154405910208100407
更新日期：2002-04-01 00:00:00
abstract：:Adhesion of restorative and protective materials to dentin is an important requirement for operative and preventive dentistry. Wettability and roughness are dentin substrate conditions that are critical to establishing good adhesion. This study examined superficial and deep dentin for variations in water contact angle...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345990780091001
更新日期：1999-09-01 00:00:00
abstract：:The proton probe has been used to map F concentration changes in the enamel of 15 teeth showing clinical evidence of caries. Thin sections through the lesions were microradiographed and measurements made of the surface zone (radiodense) and body (radiolucent) areas. Each section was then scanned with a focused beam of...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345950740111001
更新日期：1995-11-01 00:00:00
