Abstract:
BACKGROUND:Reduction of alveolar height and width after tooth extraction may present problems for implant placement, especially in the anterior maxilla where bone volume is important for biologic and esthetic reasons. Different graft materials have been proposed to minimize the reduction in ridge volume. The aim of this study was to compare radiographic and histomorphometric results of magnesium-enriched hydroxyapatite (MHA) and calcium sulfate (CS) grafts in fresh sockets after tooth extractions. METHODS:Forty-five fresh extraction sockets with three bone walls were selected in 15 patients. A split-mouth design was used: 15 sockets on the right side of the jaw received MHA, 15 sockets on the left side received CS, and 15 random unfilled sockets were considered the control (C) group. Intraoral digital radiographs were taken at baseline and at 3 months after graft material placement. At 3 months, cylinder bone samples were obtained for histology and histomorphometry analysis. RESULTS:The difference in mean radiographic vertical bone level from baseline to 3 months was -2.48 +/- 0.65 mm in the CS group, -0.48 +/- 0.21 mm in the MHA group, and -3.75 +/- 0.63 mm in the unfilled C group. Statistically significant differences (P <0.05) were found between CS and MHA groups and between MHA and C groups. Histologic examination revealed bone formation in all treated sites; trabecular bone assessment did not differ among apical, mesial, and coronal portions of the specimens. Mean vital bone measurements for CS, MHA, and C groups were 45.0% +/- 6.5%, 40.0% +/- 2.7%, and 32.8% +/- 5.8%, respectively. Statistically significant differences (P <0.05) were found among all groups. Connective tissue percentages averaged 41.5% +/- 6.7% for the CS group, 41.3% +/- 1.3% for the MHA group, and 64.6% +/- 6.8% for the C group. Statistically significant differences (P <0.05) were found between CS and C groups and between MHA and C groups. The CS-grafted sockets showed 13.9% +/- 3.4% residual implant material, whereas the MHA-treated sockets showed 20.2% +/- 3.2% residual material. The difference between the groups was statistically significant (P <0.05). CONCLUSIONS:Radiographs revealed a greater reduction of alveolar ridge in the CS group than in the MHA group. Histologic examination showed more bone formation and faster resorption in the CS group and more residual implant material in the MHA group.
journal_name
J Periodontoljournal_title
Journal of periodontologyauthors
Crespi R,Capparè P,Gherlone Edoi
10.1902/jop.2009.080400subject
Has Abstractpub_date
2009-02-01 00:00:00pages
210-8issue
2eissn
0022-3492issn
1943-3670pii
10.1902/jop.2009.080400journal_volume
80pub_type
杂志文章,随机对照试验abstract::The purpose of this study was to assess the clinical and microbiological effects of a newly developed root conditioning gel system containing tetracycline or a mixture of tetracycline and citric acid on non-surgical periodontal therapy. Sixty-four (64) single-rooted teeth with a probing depth of 4 to 6 mm were randoml...
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.1994.65.9.840
更新日期:1994-09-01 00:00:00
abstract::The laser reflection method of remote measurement was used to register small tooth movements of upper central incisors from a group of subjects with healthy teeth and another group with periodontally involved teeth. The mobility of the healthy maxillary incisors over a period of 24 hours was well within normal limits....
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1982.53.7.439
更新日期:1982-07-01 00:00:00
abstract:BACKGROUND:A 22-year-old African American female was referred for augmentation of keratinized gingiva around implants at the right and left maxillary second premolar sites. Presurgical evaluation revealed generalized melanosis of the buccal gingiva and a lack of keratinized tissue around implants at sites #4 and #13. N...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2009.090289
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:The aim of this study was to compare the activity of neutrophilic granulocytes in patients with severe periodontitis and patients with gingivitis alone. METHODS:The study population comprised 22 patients with gingivitis and 44 with periodontitis. Samples of gingival crevicular fluid (GCF) were collected fro...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2005.76.6.951
更新日期:2005-06-01 00:00:00
abstract::This study examined the relationships between plasma and saliva concentrations of phenytoin and 5-(4-hydroxyphenyl)-5-phenylhydantoin (HPPH), the major metabolite of phenytoin in man, and the prevalence and severity of gingival overgrowth. Thirty-six adult epileptic patients who had been receiving phenytoin for greate...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1996.67.6.597
更新日期:1996-06-01 00:00:00
abstract:BACKGROUND:The aim of the present study was to evaluate the effect of strict supragingival plaque control on the subgingival microbiota in smokers and never-smokers. Research into the impact of supragingival plaque control on the number of subgingival bacteria has resulted in contradictory findings. Real-time polymeras...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章
doi:10.1902/jop.2008.070558
更新日期:2008-12-01 00:00:00
abstract:BACKGROUND:The aim of this study was to seek the critical time for impairment of alveolar bone regeneration after ovariectomy (OVX) in rats. METHODS:A total of 32 female rats were used. Test group rats were divided into a 2M group (n = 8), a 3M group (n = 8) and a 4M group (n = 8) according to the duration from OVX to...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1002/JPER.19-0537
更新日期:2020-10-01 00:00:00
abstract::Smoker's melanosis is a benign pigmentation of the oral mucosa, predominantly observed on the attached anterior mandibular gingiva and interdental papillae. These macular lesions are independent of genetic factors, therapeutic medication usage, and various systemic disorders. As a group they are often seen after the t...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.1991.62.8.524
更新日期:1991-08-01 00:00:00
abstract:BACKGROUND:Aortic aneurysms affect an increasing number of elderly patients and cause considerable morbidity and mortality. The understanding of the mechanisms involved in the pathogenesis of aortic aneurysms is unclear and little is known about the role of microorganisms in the development of the condition. The aim of...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2005.76.4.590
更新日期:2005-04-01 00:00:00
abstract:BACKGROUND:The present study was planned to investigate the therapeutic actions of 1-tetradecanol complex (1-TDC), a novel monounsaturated fatty acid mixture, in established periodontitis in rabbits. METHODS:Periodontitis was initiated in 18 New Zealand White rabbits using ligatures around mandibular second premolars,...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2009.090002
更新日期:2009-07-01 00:00:00
abstract::Cemental tears have been described both in exposed and unexposed cementum. The phenomenon is believed to be elicited by overloading or acute trauma from occlusion. In this case report a patient, with a history of periodontal health, presented with an acute periodontal lesion on the distal aspect of a bridge abutment t...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1992.63.3.220
更新日期:1992-03-01 00:00:00
abstract::Palatal groove is a rare morphological defect of upper incisors, frequently associated with localized destruction of periodontal tissue with endodontic complications. In this study, a sample of 1,081 male, young adult subjects, aged 20 to 22, palatal grooving was recorded in 11 (1.01%) subjects, affecting 15 incisors....
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1990.61.3.197
更新日期:1990-03-01 00:00:00
abstract:BACKGROUND:Some studies have reported an association between gestational diabetes mellitus (GDM) and periodontitis. The aim of the present study is to analyze this potential association and the influence of risk variables associated with GDM. METHODS:This case-control study includes 360 women, 90 with GDM and 270 cont...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2012.120350
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND:Receptor activator of nuclear factor-kappa B (NF-kappaB) ligand (RANKL) and osteoprotegerin (OPG) are critical for homeostatic control of osteoclast activity, suggesting their vital roles in the progression of bone loss in periodontitis. In this study, the expression of RANKL and OPG mRNA and the relationshi...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2007.060398
更新日期:2007-06-01 00:00:00
abstract:BACKGROUND:This study examined conditions under which gingival crevicular blood (GCB) could be used to obtain a useful glucose reading to screen for undiagnosed diabetes during routine dental visits. METHODS:GCB and capillary finger-stick blood (CFB) glucose readings obtained with a glucometer were compared for 46 pat...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2009.080542
更新日期:2009-06-01 00:00:00
abstract::This study examined the effect of oral food consumption on the prevalence and levels of subgingival bacteria and yeasts in 20 gastrostomy tube-fed children and 24 healthy controls. Microbial identification was carried out using anaerobic culture and 16S rRNA-based PCR identification methods. Streptococcal and Actinomy...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1997.68.12.1163
更新日期:1997-12-01 00:00:00
abstract:BACKGROUND:The purpose of this prospective study was to compare the changes in periodontal somatosensory function and microcirculation in patients with periodontitis following initial treatment with scaling and root planing (SRP) with or without adjuvant laser therapy. METHODS:Twenty-four patients suffering from perio...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1002/JPER.19-0562
更新日期:2020-10-01 00:00:00
abstract::One hundred mandibles of South African Negroes were examined for the presence of intrabony defects, and the distance between the cemento-enamel junction and alveolar bone crest was measured along the buccal and lingual surface of roots associated with interdental craters. Two-hundred thirty-one intrabony defects were ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1984.55.3.149
更新日期:1984-03-01 00:00:00
abstract::The one-year results of a regenerative procedure in patients treated with or without antibiotics are presented. Expanded polytetrafluoroethylene (ePTFE) was placed over mandibular molar Class II furcation invasions and retained for four weeks. The patients in group 1 received no antibiotics; patients in group 2 receiv...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章
doi:10.1902/jop.1994.65.7.713
更新日期:1994-07-01 00:00:00
abstract:BACKGROUND:A novel injectable, fast setting calcium phosphate cement (CPC) is currently used in orthopedic therapy for bone fractures. This study evaluated the possibility of applying this cement to healing periodontal defects. METHODS:Fenestrations and 3-walled periodontal defects were surgically created on bilateral...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2002.73.9.1043
更新日期:2002-09-01 00:00:00
abstract:BACKGROUND:Recombinant human bone morphogenetic protein-2 (rhBMP-2) has been found to promote the osteoblastic differentiation of human periodontal ligament cells. Its effect depends on the delivery system used. In this study we examined the effect of rhBMP-2 on the proliferation and osteoblastic differentiation of hum...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2003.74.7.982
更新日期:2003-07-01 00:00:00
abstract:BACKGROUND:Arachidonate-5-lipoxygenase (5-LO) activity and increased leukotriene B4 (LTB4) production have been implicated in various inflammatory conditions. Increased production of leukotrienes has been associated with periodontal diseases; however, their relative contribution to tissue destruction is unknown. In thi...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2017.170210
更新日期:2017-12-05 00:00:00
abstract:BACKGROUND:Clinical attachment level (CAL) and bone height (radiographic or clinical) are two well-accepted endpoint measures for periodontal clinical trials; however, neither one has been shown to be more predictive of long-term success than the other. We propose using a composite endpoint analysis combining clinical ...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2006.050275
更新日期:2006-08-01 00:00:00
abstract:BACKGROUND:It has been shown that lowering the concentration of chlorhexidine (CHX) in mouthrinses from 0.2% to 0.12% does not adversely affect inhibition of plaque accumulation. The aim of this study was to evaluate the inhibition of plaque growth by 2 commercially available mouthrinses used according to the manufactu...
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.2003.74.2.214
更新日期:2003-02-01 00:00:00
abstract::The prevalence of periodontitis was studied in a population of insulin-dependent diabetes mellitus (IDDM) patients, aged 10-18, with a variety of disease durations and levels of control. The sample included a number of patients with poorly controlled IDDM of long duration. None of the patients had radiographic signs o...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1984.55.7.402
更新日期:1984-07-01 00:00:00
abstract:BACKGROUND:Successful periodontal treatment requires a commitment to regular lifelong maintenance and may be perceived by patients to be costly. This study calculates the total lifetime cost of periodontal treatment in the setting of a specialist periodontal practice and investigates the cost implications of choosing n...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2012.110689
更新日期:2012-12-01 00:00:00
abstract:BACKGROUND:The aim of this study was to investigate the total antioxidant capacity, superoxide dismutase and glutathione peroxidase activities, and malondialdehyde levels in serum, saliva, and gingival crevicular fluid (GCF) in preeclamptic and normotensive pregnant women with and without periodontal disease. METHODS:...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2007.060469
更新日期:2007-08-01 00:00:00
abstract:BACKGROUND:Metabolic syndrome is becoming a common disorder worldwide. Studies have shown a relationship between metabolic syndrome and periodontal disease, although information on the relationship is limited. METHODS:We analyzed 1,070 Japanese people aged 40, 50, 60, and 70 years who participated in health and period...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2009.090218
更新日期:2009-10-01 00:00:00
abstract:BACKGROUND:Earlier studies have shown an association between obesity and periodontitis, which is mediated by cytokine production. The aim of this study is to assess the role of obesity as a modifying factor on periodontal clinical parameters and on circulating proinflammatory cytokine levels in subjects undergoing non-...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2010.100545
更新日期:2011-05-01 00:00:00
abstract::Serial histological sections of gingiva obtained from each of six advanced adult periodontitis, two localized juvenile periodontitis and two periodontally healthy patients were used for specific identification of bacteria within the oral epithelium and adjacent connective tissue. Healthy gingival biopsies served as co...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1986.57.8.492
更新日期:1986-08-01 00:00:00