Cervical enamel projections and associated pouch-like opening in mandibular furcations.

Abstract:

BACKGROUND:Cervical enamel projections (CEPs) have been listed among the tooth-associated risk factors that could lead to isolated furcation defects around molar teeth. This is more likely when Grade III CEPs are present. However, the histologic aspects of the CEP interface with regard to the presence or absence of cementum over the enamel projection within the furcation have not been well described. This study was initially undertaken to evaluate this relationship. METHODS:Thirty-five mandibular molars with Grade III CEPs were selected from a collection of extracted teeth and evaluated for the presence of cementum covering these areas by stereomicroscopy, light microscopy, and scanning electron microscopy (SEM). RESULTS:Sixteen of the 35 teeth (45.7%) with Grade III CEPs appeared completely covered by cementum. SEM evaluation showed the presence of a narrow pouch-like opening between cementum and enamel in 15 of 16 teeth (93.8%). Light microscopy evaluation confirmed the presence of the pouch along with some indication of residual degenerated mesenchymal tissue within the defects. SEM evaluation showed the presence of globular bodies in this pouch. CONCLUSIONS:This study reports on the presence of a pouch-like opening between the enamel and cementum in mandibular molars with Grade III CEPs. The clinical significance of these cementum pouches has yet to be determined but bacterial contamination of these pouch-like structures in areas of furcation periodontal breakdown may serve as a nidus for recolonization and disease recurrence or for the development of furcation caries if exposed to the oral cavity after surgical procedures.

journal_name

J Periodontol

authors

Blanchard SB,Derderian GM,Averitt TR,John V,Newell DH

doi

10.1902/jop.2011.110088

subject

Has Abstract

pub_date

2012-02-01 00:00:00

pages

198-203

issue

2

eissn

0022-3492

issn

1943-3670

journal_volume

83

pub_type

杂志文章
  • Immediate loading of implants placed with the osteotome technique: one-year prospective case series.

    abstract:BACKGROUND:There is limited information regarding marginal bone-level changes around immediately loaded implants placed with the osteotome technique. The aim of this case series is to prospectively evaluate the clinical and radiographic outcome of immediately loaded implants placed with the osteotome technique over a 1...

    journal_title:Journal of periodontology

    pub_type: 临床试验,杂志文章

    doi:10.1902/jop.2011.100751

    authors: Koutouzis T,Koutouzis G,Tomasi C,Lundgren T

    更新日期:2011-11-01 00:00:00

  • Guided tissue regeneration in Class II furcation involved maxillary molars: a controlled study of 8 split-mouth cases.

    abstract::The purpose of this study was to clinically evaluate the effectiveness of polytetrafluoroethylene membranes in the healing of interproximal Class II furcation defects in maxillary molars using a surgical treatment technique based on the principles of guided tissue regeneration. Eight subjects with similar bilateral Cl...

    journal_title:Journal of periodontology

    pub_type: 临床试验,杂志文章

    doi:10.1902/jop.1998.69.9.1020

    authors: Avera JB,Camargo PM,Klokkevold PR,Kenney EB,Lekovic V

    更新日期:1998-09-01 00:00:00

  • Fiber glass splints.

    abstract::Temporary splints to immobilize periodontally diseased teeth were made by fiber glass bonded and attached to the teeth with acid-etch technique with BIS-GMA resin. Twenty-one splints were made. Observation time ranged from 4 to 14 months. During the observation only one splint fractured and was repaired while the othe...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1902/jop.1979.50.4.193

    authors: Friskopp J,Blomlöf L,Söder PO

    更新日期:1979-04-01 00:00:00

  • The relationship between first presentation and subsequent observations in heavy calculus formers.

    abstract::There are few studies that provide information on the natural history of calculus formation. The purpose of this study is to evaluate the relationship between pre-scaling baseline calculus scores, the time since the last prophylaxis before baseline, and scores 8 weeks after scaling in a group of presumed heavy calculu...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1902/jop.1994.65.8.750

    authors: Blank LW,Rule JT,Colangelo GA,Copelan NS,Perlich MA

    更新日期:1994-08-01 00:00:00

  • Clinical and Biochemical Evaluation of Lozenges Containing Lactobacillus reuteri as an Adjunct to Non-Surgical Periodontal Therapy in Chronic Periodontitis.

    abstract:BACKGROUND:This study evaluates the effects on clinical and biochemical parameters of Lactobacillus reuteri-containing probiotic supplementation adjunctive to initial periodontal therapy in patients with chronic periodontitis (CP). METHODS:Thirty patients with CP were included and divided into two groups. Every patien...

    journal_title:Journal of periodontology

    pub_type: 杂志文章,随机对照试验

    doi:10.1902/jop.2015.140612

    authors: İnce G,Gürsoy H,İpçi ŞD,Cakar G,Emekli-Alturfan E,Yılmaz S

    更新日期:2015-06-01 00:00:00

  • Ability of commercial demineralized freeze-dried bone allograft to induce new bone formation.

    abstract::Demineralized freeze-dried bone allograft (DFDBA) has been used extensively in periodontal therapy. The rationale for use of DFDBA includes the fact that proteins capable of inducing new bone; i.e., bone morphogenetic proteins, can be isolated from bone grafts. Commercial bone banks have provided DFDBA to the dental p...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1902/jop.1996.67.9.918

    authors: Schwartz Z,Mellonig JT,Carnes DL Jr,de la Fontaine J,Cochran DL,Dean DD,Boyan BD

    更新日期:1996-09-01 00:00:00

  • Enhancement of bone formation by bone morphogenetic protein-2 during alveolar distraction: an experimental study in sheep.

    abstract:BACKGROUND:The purpose of this study was to perform alveolar ridge augmentation by distraction osteogenesis (DO) and to enhance bone regeneration through the use of recombinant human bone morphogenetic protein-2 (rhBMP-2), followed by implant placement. METHODS:Alveolar segmental osteotomy was performed in the mandibl...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1902/jop.2004.75.11.1524

    authors: Rachmiel A,Aizenbud D,Peled M

    更新日期:2004-11-01 00:00:00

  • Effect of staged crestal maxillary sinus augmentation: A case series.

    abstract:BACKGROUND:In sinus augmentation, when remaining bone height is ≤5 mm, a lateral window approach is often the preferred choice; nonetheless, patients prefer to have a less invasive approach such as crestal sinus augmentation (CSA). Prior case reports have described the use of various staged approaches of a CSA techniqu...

    journal_title:Journal of periodontology

    pub_type:

    doi:10.1002/JPER.18-0632

    authors: Sonoda T,Yamamichi K,Harada T,Yamamichi N

    更新日期:2020-02-01 00:00:00

  • Effects of repeated hand instrumentation on the marginal portion of a cast gold crown.

    abstract::A study was conducted to evaluate the effects of repeated hand instrumentation on the marginal portion of a cast gold crown. Seven extracted periodontally diseased premolars were used. The finishing line of the preparation was placed on the root surface and then the crown was cast and cemented in the usual manner. One...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1902/jop.1998.69.1.41

    authors: Yagi H,Ito K,Eda M,Murai S

    更新日期:1998-01-01 00:00:00

  • Analysis of Human Gingival Tissue and Gingival Crevicular Fluid β-Glucuronidase Activity in Specific Periodontal Diseases.

    abstract:BACKGROUND:β-glucuronidase (βG) is one of the enzymes involved in the destruction of non-collagenous components of the extracellular matrix. It is also considered an indicator or predictor of periodontal disease activity. The present study was conducted to determine the presence and the levels of βG activity in gingiva...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1902/jop.2000.71.4.618

    authors: Layik M,Yamalik N,Çaglayan F,Kilinç K,Etikan I,Eratalay K

    更新日期:2000-04-01 00:00:00

  • Differential benefits of amoxicillin-metronidazole in different phases of periodontal therapy in a randomized controlled crossover clinical trial.

    abstract:BACKGROUND:The specific advantage of administering systemic antibiotics during initial, non-surgical therapy or in the context of periodontal surgery is unclear. This study assesses the differential outcomes of periodontal therapy supplemented with amoxicillin-metronidazole during either the non-surgical or the surgica...

    journal_title:Journal of periodontology

    pub_type: 杂志文章,随机对照试验

    doi:10.1902/jop.2014.140478

    authors: Mombelli A,Almaghlouth A,Cionca N,Courvoisier DS,Giannopoulou C

    更新日期:2015-03-01 00:00:00

  • Changes of subgingival total colony forming units and black pigmented bacteroides after a single irrigation of periodontal pockets with 1.64% SnF2.

    abstract::Periodontal pockets of 11 subjects were irrigated once with either 1.64% SnF2 or saline applied by syringe. Changes on the total anaerobic colony forming units (CFU) and black pigmented bacteroides (BPBs) of the irrigated pockets were assessed for 31 days. The results showed little change of the CFUs by either single ...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1902/jop.1985.56.6.330

    authors: Schmid E,Kornman KS,Tinanoff N

    更新日期:1985-06-01 00:00:00

  • Smoker's melanosis. A case report.

    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

    authors: Brown FH,Houston GD

    更新日期:1991-08-01 00:00:00

  • Depletion of polyamines and increase of transforming growth factor-beta1, c-myc, collagen-type I, matrix metalloproteinase-1, and metalloproteinase-2 mRNA in primary human gingival fibroblasts.

    abstract:BACKGROUND:The polyamines spermidine, spermine, and putrescine are known to be deeply linked with growth processes, gene expression, and extracellular matrix synthesis. Their cellular content depends primarily on the activity of the enzyme ornithine decarboxylase. High levels of ornithine decarboxylase and polyamines h...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1902/jop.2005.76.3.443

    authors: Stabellini G,Moscheni C,Gagliano N,Dellavia C,Calastrini C,Ferioli ME,Gioia M

    更新日期:2005-03-01 00:00:00

  • A radiographic evaluation of bone healing around submerged and non-submerged dental implants in beagle dogs.

    abstract:BACKGROUND:The rehabilitation of the oral cavity with dental implants has become a predictable treatment modality. However, there have been only a few direct comparisons evaluating the submerged and nonsubmerged placement techniques. The purpose of this study was to characterize radiographic peri-implant bone changes f...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1902/jop.1999.70.3.248

    authors: Fiorellini JP,Buser D,Paquette DW,Williams RC,Haghighi D,Weber HP

    更新日期:1999-03-01 00:00:00

  • Some anatomical factors related to furcation involvements.

    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

    authors: Larato DC

    更新日期:1975-10-01 00:00:00

  • 1-Tetradecanol complex: therapeutic actions in experimental periodontitis.

    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

    authors: Hasturk H,Goguet-Surmenian E,Blackwood A,Andry C,Kantarci A

    更新日期:2009-07-01 00:00:00

  • The effect of platelet-rich plasma on the coronally advanced flap root coverage procedure: a pilot human trial.

    abstract:BACKGROUND:Coronally advanced flap (CAF) has been shown to effectively treat gingival recession. Platelet-rich plasma (PRP), containing autologous growth factors, has been shown to promote soft tissue healing. Therefore, the purpose of this study was to evaluate the effects of PRP in combination with CAF. METHODS:Twen...

    journal_title:Journal of periodontology

    pub_type: 杂志文章,随机对照试验

    doi:10.1902/jop.2005.76.10.1768

    authors: Huang LH,Neiva RE,Soehren SE,Giannobile WV,Wang HL

    更新日期:2005-10-01 00:00:00

  • The prevalence and distribution of intrabony defects in dry mandibles.

    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

    authors: Tal H

    更新日期:1984-03-01 00:00:00

  • Sarcoidosis affecting the periodontium: a long-term follow-up case.

    abstract:BACKGROUND:Clinical manifestations of sarcoidosis affecting the periodontium could mimic aggressive periodontitis. This case report documents the occurrence of sarcoidosis affecting the periodontium, including its clinical features, diagnosis, treatment, and 6-year follow-up. METHODS:An individual with a history of pu...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1902/jop.2007.070117

    authors: Moretti AJ,Fiocchi MF,Flaitz CM

    更新日期:2007-11-01 00:00:00

  • Periodontal regeneration in humans using recombinant human platelet-derived growth factor-BB (rhPDGF-BB) and allogenic bone.

    abstract:BACKGROUND:Purified recombinant human platelet-derived growth factor BB (rhPDGF-BB) is a potent wound healing growth factor and stimulator of the proliferation and recruitment of both periodontal ligament (PDL) and bone cells. The hypothesis tested in this study was that application of rhPDGF-BB incorporated in bone al...

    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.2003.74.9.1282

    authors: Nevins M,Camelo M,Nevins ML,Schenk RK,Lynch SE

    更新日期:2003-09-01 00:00:00

  • A method to assess the clinical outcome of ridge augmentation procedures.

    abstract:BACKGROUND:Alveolar ridge augmentation procedures are often needed prior to implant placement or prosthetic rehabilitation. The purpose of this study was to develop a quantitative method to assess the clinical outcome of such procedures. METHODS:Two volumetric methods, based on the volume difference between the pre- a...

    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.2002.73.3.302

    authors: Proussaefs PT,Valencia G,Lozada J,Tatakis DN

    更新日期:2002-03-01 00:00:00

  • Metformin ameliorates experimental diabetic periodontitis independently of mammalian target of rapamycin (mTOR) inhibition by reducing NIMA-related kinase 7(Nek7) expression.

    abstract:BACKGROUND:Metformin, a classical treatment for diabetes mellitus, has shown sound anti-inflammatory effects. Emerging studies have focused on the mechanism underlying inflammation-related diabetic complications, such as diabetic periodontitis. Herein, we investigated the anti-inflammatory effects of metformin on the N...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1002/jper.10311

    authors: Zhou X,Zhang P,Wang Q,Ji N,Xia S,Ding Y,Wang Q

    更新日期:2019-02-19 00:00:00

  • Value of antibiotic prophylaxis in periodontal surgery.

    abstract::THE MORBIDITY and incidence of bacteremia in periodontal surgery with or without cephalexin prophylaxis were assessed in adults on the basis of clinical evaluations and blood cultures. Cephalexin reduced the incidence of polymicrobic bacteremias. There was no correlation between objective signs of tissue healing and a...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1902/jop.1982.53.5.319

    authors: Appleman MD,Sutter VL,Sims TN

    更新日期:1982-05-01 00:00:00

  • Differential effects of amelogenin on mineralization of cementoblasts and periodontal ligament cells.

    abstract:BACKGROUND:Amelogenin is a major component of developing extracellular enamel matrix proteins and plays a crucial role during the formation of tooth enamel. In addition, amelogenins are suggested to exert biologic functions as signaling molecules through cell-surface receptors. The purpose of this study is to examine t...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1902/jop.2011.110408

    authors: Tanimoto K,Kunimatsu R,Tanne Y,Huang YC,Michida M,Yoshimi Y,Miyauchi M,Takata T,Tanne K

    更新日期:2012-05-01 00:00:00

  • Experimental gingivitis in ODU plaque-susceptible rats. V. On the vascular permeability factor of dental plaque.

    abstract::Plaque-induced inflammation has been documented from various aspects, but is still not well understood. In an effort to clarify the physicochemical properties of dental plaque and to isolate the active factor which give rise to inflammation, we studied a factor in plaque which may be a direct and local cause of gingiv...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1902/jop.1980.51.7.400

    authors: Matsuda K,Yamanaka Y,Shen CT,Mori M

    更新日期:1980-07-01 00:00:00

  • The laser gingivectomy. The use of the CO2 laser for the removal of phenytoin hyperplasia.

    abstract::A new technique for the removal of phenytoin hyperplasia using the carbon dioxide (CO2) surgical laser is presented as well as a review of laser physics and the current uses of the CO2 laser in dentistry. Twelve cases of phenytoin hyperplasia removed surgically by the CO2 laser are presented; hence a laser gingivectom...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1902/jop.1985.56.8.492

    authors: Pick RM,Pecaro BC,Silberman CJ

    更新日期:1985-08-01 00:00:00

  • A study of epithelial odontogenic residues in the pig.

    abstract::Formation of the junctional epithelium was studied by routine light microscopy in the molar teeth of commercially slaughtered pigs. It was found that the process whereby the reduced enamel epithelium (REE) contributed to the junctional epithelium formation corresponded largely with changes in man previously described ...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1902/jop.1986.57.3.164

    authors: Spouge JD

    更新日期:1986-03-01 00:00:00

  • Bacterial penetration of gingiva in the adult beagle dog with periodontitis.

    abstract::Invasion of gingival tissues by bacteria is thought to be a major factor in development of periodontal lesions. Morphologic studies have revealed bacteria within the pocket epithelium, gingival connective tissues, alveolar bone, and oral epithelium. The current studies are intended to determine whether they are presen...

    journal_title:Journal of periodontology

    pub_type: 杂志文章

    doi:10.1902/jop.1990.61.1.35

    authors: Silverstein LH,Schuster GS,Garnick JJ,Singh B

    更新日期:1990-01-01 00:00:00

  • Gingiva thickness in guided tissue regeneration and associated recession at facial furcation defects.

    abstract::Consistently successful regenerative therapy for furcation defects using membrane techniques remains a challenge for clinicians. The purpose of this study was to determine if the thickness of tissue used to cover the membrane influences postsurgery recession. Thirty-seven (37) moderate to advanced adult periodontitis ...

    journal_title:Journal of periodontology

    pub_type: 临床试验,杂志文章

    doi:10.1902/jop.1995.66.5.397

    authors: Anderegg CR,Metzler DG,Nicoll BK

    更新日期:1995-05-01 00:00:00