Abstract:
BACKGROUND:Lingual plate perforation at the time of implant placement in posterior mandible is a potential surgical complication, and presence of a lingual concavity is considered a risk factor. Little is known about the spatial relationship between implant and lingual plate. The role of lingual concavity in the risk of lingual perforation has not yet been fully studied. This computer-simulated study investigates the incidence of lingual plate perforation in edentulous mandibular first molar region and the risk of perforation in the area of lingual concavity. METHODS:One hundred and three qualified cone-beam computed tomography scans were selected from the database. Implants of various dimensions were virtually placed into the area using computer software. The distance between implant tip and lingual plate was measured using a digital caliper. Incidence of lingual plate perforation and proximity of the implant tip to lingual plate were measured for three types of cross-sectional mandibular morphology. RESULTS:One hundred and three cone-beam computed tomography scans with 118 sites were available for analysis. The intraexaminer and interexaminer agreements were 0.93 and 0.89, respectively. The predicted incidence of lingual plate perforation was 1.1% to 1.2%. Most implants, which were within 1 mm from lingual plate, occurred in sites with lingual concavity (type-U ridge). CONCLUSIONS:This study demonstrates a novel experimental design by which the spatial relation between implant and lingual plate in mandibular first molar region is investigated. Incidence of lingual plate perforation during implant placement is predicted to be 1.1% to 1.2% and it will most likely happen in type-U ridge.
journal_name
J Periodontoljournal_title
Journal of periodontologyauthors
Chan HL,Benavides E,Yeh CY,Fu JH,Rudek IE,Wang HLdoi
10.1902/jop.2010.100313subject
Has Abstractpub_date
2011-01-01 00:00:00pages
129-35issue
1eissn
0022-3492issn
1943-3670journal_volume
82pub_type
杂志文章abstract:BACKGROUND:The aim of this study was to compare the clinical outcome of intrabony periodontal defects following treatment with a novel nanocrystalline hydroxyapatite (NHA) paste to open flap debridement. METHODS:Twenty-eight subjects, each displaying one intrabony defect with probing depth (PD) > or =6 mm and radiogra...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2008.070378
更新日期:2008-03-01 00:00:00
abstract::Subtraction radiography requires radiographs made with identical projection geometry. The purpose of the present investigation was to develop and evaluate a new in vivo method to measure angular radiographic projection error. This included the development of a system for accurate control of the x-ray beam angulation r...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1991.62.11.674
更新日期:1991-11-01 00:00:00
abstract::A technique designed to utilize the autogenous free gingival graft without the use of sutures was demonstrated. Necessary objectives were maintained but achieved without unnecessarily piercing the graft, and in less time. The only variance in results would be due to the underlying physical properties of the recipient ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1979.50.2.75
更新日期:1979-02-01 00:00:00
abstract:BACKGROUND:The aim of this clinical trial was to compare the outcome of non-surgical treatment of interproximal and non-interproximal Class II furcation involvements. METHODS:Thirty-eight patients presenting at least one Class II furcation involvement that bled on probing with a probing depth (PD) > or = 5 mm were rec...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章
doi:10.1902/jop.2007.060312
更新日期:2007-02-01 00:00:00
abstract:BACKGROUND:The purpose of this study is to evaluate whether β-tricalcium phosphate (β-TCP) could be a promising modality to help augment alveolar bone in periodontal tissue regeneration by bone marrow mesenchymal stem cells (BMMSCs). METHODS:Expanded BMMSCs and atelocollagen (Col) were mixed together (MSC/Col). A comb...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2014.140384
更新日期:2015-03-01 00:00:00
abstract::Accumulating evidence suggests that chronic infections, such as periodontitis, are associated with increased risk for cardiovascular diseases (CVD). The mechanisms behind the association are not known. Like herpes viruses and Chlamydia pneumoniae, periodontal pathogens cause atherosclerosis in experimental animals and...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.2005.76.11-S.2085
更新日期:2005-11-01 00:00:00
abstract:BACKGROUND:Titanium dental material can become corroded because of electrochemical interaction in the oral environment. The corrosion process may result in surface modification. It was hypothesized that a titanium surface modified by corrosion may enhance the attachment of periodontal pathogens. This study evaluates th...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2014.130595
更新日期:2014-09-01 00:00:00
abstract:BACKGROUND:Low-calorie diets are commonplace for reducing body weight. However, no information is available on the effects of a reduced-calorie diet on periodontal inflammation and disease. The purpose of this study was to evaluate the clinical effects of a long-term calorie-restriction (CR) diet on periodontitis in an...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2008.070629
更新日期:2008-07-01 00:00:00
abstract::The purpose of this study was to evaluate the feasibility and reliability of using a home screening occult blood test to detect the presence of gingival inflammation. Fifty (50) healthy male and female subjects participated in this study. Pre- and post-stimulation saliva samples were obtained and tested for occult blo...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章
doi:10.1902/jop.1995.66.1.52
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:In the attempt to limit the post-surgery increase in buccal gingival recession (bREC), effect of a connective tissue graft (CTG) when combined with a buccal single flap approach (SFA) in the regenerative treatment of intraosseous defects is evaluated. METHODS:Data related to 30 patients with an intraosseous...
journal_title:Journal of periodontology
pub_type: 杂志文章,多中心研究
doi:10.1902/jop.2016.160471
更新日期:2017-04-01 00:00:00
abstract:BACKGROUND:During the last decade, there have been great strides in the treatment of gingival recession defects, especially with subepithelial connective tissue graft and guided tissue regeneration (GTR) procedures. Gingival recession represents a significant concern for patients. It is necessary to choose the most app...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1902/jop.2000.72.9.1258
更新日期:2001-09-01 00:00:00
abstract:BACKGROUND:Today, implants are placed using both non-submerged and submerged approaches, and in 1- and 2-piece configurations. Previous work has demonstrated that peri-implant crestal bone reactions differ radiographically under such conditions and are dependent on a rough/smooth implant border in 1-piece implants and ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2000.71.9.1412
更新日期:2000-09-01 00:00:00
abstract:BACKGROUND:This report describes the surgical treatment of a gingival recession in a hemophiliac HIV-infected patient. To our knowledge, mucogingival surgery has not been described previously in these patients. METHODS:Under the supervision of the patient's hematologist, a subepithelial connective tissue graft procedu...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2004.75.10.1413
更新日期:2004-10-01 00:00:00
abstract::A total of 305 dry human skull specimens were examined for the presence of furcation involvements. Of a total of 188 furcation involvements, 142 (75%) were related to the close proximity of the furcation to the cemento enamel junction of the tooth. ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1975.46.10.608
更新日期:1975-10-01 00:00:00
abstract::Healing of extraction sockets where the buccal plate of bone has been destroyed often results in localized ridge deformities. This is most likely due to the ingrowth of extraskeletal connective tissue into the space originally occupied by the tooth which then fills with a combination of bone and soft tissue. Technique...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1994.65.1.17
更新日期:1994-01-01 00:00:00
abstract:BACKGROUND:Previous findings of an association between 25-hydroxyvitamin D [25(OH)D] concentrations and periodontal disease may be partially explained by the antimicrobial properties of vitamin D. To the best of the authors' knowledge, no study has investigated the association between 25(OH)D and pathogenic oral bacter...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2013.130518
更新日期:2014-07-01 00:00:00
abstract::A surgical and suturing method is described for the subgingival placement of Gore-tex periodontal material during new attachment procedures. The periodontal material isolates the root surface from epithelium and gingival connective tissue. Three cases were treated. Clinical new attachment was evident from clinical pro...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1987.58.12.819
更新日期:1987-12-01 00:00:00
abstract::A case of delayed eruption of the primary dentition secondary to phenytoin therapy in a 4-year-old child is reported. The patient had been on phenytoin therapy since the first months of life. Radiographs revealed that alveolar but not gingival emergence had occurred. Surgical excision of the excess gingival tissue was...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1984.55.1.19
更新日期:1984-01-01 00:00:00
abstract::This study tested the effects of using a Gore-Tex periodontal material on new connective tissue attachment in beagle dogs with natural periodontitis. Seven female beagle dogs with advanced periodontitis were selected and given thorough root debridement. Under general anesthesia four weeks later, mucoperiosteal flaps w...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1988.59.9.589
更新日期:1988-09-01 00:00:00
abstract::Oral polymorphonuclear leukocytes (pmn) were obtained from 10 adult donors in good oral health using a method employing repeated mouth rinse collection. Interleukin-1β (IL-1β) mRNA was detected in freshly obtained cells by blot hybridization of total cellular RNA with a biotin labeled cDNA probe. Supernates from oral ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1995.66.9.761
更新日期:1995-09-01 00:00:00
abstract:BACKGROUND:Resorption of grafted bone and delayed osseointegration of implants are main problems associated with alveolar bone augmentation in dental implantology, especially for patients with osteoporosis. The aim of this study is to investigate the early healing response of implants to systemic treatment of zoledroni...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2013.130046
更新日期:2014-02-01 00:00:00
abstract::The Orbison ultrasonic instrument and the Cavitron ultrasonic dental unit were compared for the smoothness of the root surfaces they produced. Twenty teeth were analyzed with the scanning electron microscope and classified as to rough or smooth. Both instruments produced similar degrees of smoothness on the root surfa...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1975.46.2.119
更新日期:1975-02-01 00:00:00
abstract::The research reviewed in this paper constitutes a series of investigations intended to develop and evaluate a new membrane technique, which provides improved conditions for osteogenesis during healing of bone defects and restitution of earlier existing bone. The technique has also been shown to aid in bone grafting as...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.1993.64.11s.1116
更新日期:1993-11-01 00:00:00
abstract:BACKGROUND:Little is known about systemic, environmental, and periodontal risk factors of gingival recessions. This study identifies variables related to buccal gingival recessions in an adult French population; this study uses data collected in the First National Periodontal and Systemic Examination Survey. METHODS:T...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2010.100102
更新日期:2010-10-01 00:00:00
abstract::Platelet-rich fibrin (PRF), a second-generation platelet concentrate, has been the focus of intensive research endeavors over the past 2 decades. Over the years, however, numerous reports have inaccurately reported relative centrifugal force (RCF) values, which has caused considerable confusion in the field. Furthermo...
journal_title:Journal of periodontology
pub_type: 社论
doi:10.1002/JPER.18-0553
更新日期:2019-08-01 00:00:00
abstract:BACKGROUND:The development of chronic periodontitis (CP) is a multifactorial process and variation in severity cannot be explained by just a few risk factors. The aims of this study were: 1) to explore the lifestyle and psychosocial factors of CP patients and 2) to estimate the proportion of total CP cases attributable...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2003.74.8.1169
更新日期:2003-08-01 00:00:00
abstract::Chronic inflammatory illnesses such as diabetes, arthritis, and heart disease are now seen as problems that might have impacts on the periodontium, and reciprocal effects of periodontal diseases are being considered as factors potentially affecting the progression of these diseases. Successful management of the inflam...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.2005.76.11-S.2168
更新日期:2005-11-01 00:00:00
abstract:BACKGROUND:The possible association between oral infection and chronic inflammation and cardiovascular disease risk has been studied intensively. The present study is designed to determine the strength of association between edentulism and angina pectoris in Mexican adults aged 35 years and older. METHODS:Using the to...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2013.130186
更新日期:2014-03-01 00:00:00
abstract:BACKGROUND:Prostaglandin E(2) (PGE(2)), which exerts its biologic actions via EP receptors (EP(1), EP(2), EP(3,) and EP(4)), is a bioactive metabolite of arachidonic acid that is produced by cyclooxygenase (COX)-1 and/or COX-2. In the present study, we investigated whether a mouse cementoblast cell line, OCCM-30 cells,...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2007.060257
更新日期:2007-01-01 00:00:00
abstract::Supragingival plaque and calculus indices, salivary flow rates, pH, ionic and total calcium concentrations, total phosphate concentration, and the number of cervical restorations and caries lesions were measured in 29 subjects using systemic beta-(beta) blockers and in 28 subjects who were not taking any systemic medi...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章
doi:10.1902/jop.1996.67.4.428
更新日期:1996-04-01 00:00:00