Abstract:
:The aim of designing and fabricating the surgical templates was to assist the surgical component of premolar transplantation, by establishing and replicating the root dimensions of the donor premolar tooth. The correct template could be used to assess the socket preparation (width and depth) prior to placement of the transplant in the recipient site, obviating the need to repeatedly try the donor tooth for fit at the recipient site, thereby minimising trauma to the periodontal ligament of the donor tooth. Seventy-five mandibular premolars and 50 maxillary second premolars were selected with varying stages of root development. All teeth had been extracted for orthodontic reasons. The root was measured for its length (maxL) and maximum (maxW) and minimum width (minW) with digital callipers from standardised reference points. These measurements were then used in the design of premolar transplant templates. The mean measurements for second maxillary premolars were maxL 14.6 mm (± 1.7), maxW 8.3 mm (± 0.5) and minW 4.9 (± 0.3). The mean measurements for mandibular premolars were maxL 14.8 (± 1.6), maxW 7.4 (± 0.6) and minW 5.3 (± 0.5). From these measurements, a range of maxillary second premolar and mandibular premolar templates have been fabricated. These figures also inform the multidisciplinary planning process for the space requirements at the donor site prior to transplantation.
journal_name
Int Endod Jjournal_title
International endodontic journalauthors
Day PF,Lewis BR,Spencer RJ,Barber SK,Duggal Mdoi
10.1111/j.1365-2591.2012.02077.xsubject
Has Abstractpub_date
2012-11-01 00:00:00pages
1042-52issue
11eissn
0143-2885issn
1365-2591journal_volume
45pub_type
杂志文章abstract:AIM:To assess the push-out bond strength of two new calcium silicate-based endodontic sealers in the root canals of extracted teeth. METHODOLOGY:Thirty extracted single-rooted central incisors of similar sizes were selected randomly and distributed to three groups (n = 10). All canals were instrumented using ProTaper ...
journal_title:International endodontic journal
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2591.2011.01925.x
更新日期:2011-12-01 00:00:00
abstract:AIM:The Bramante method was used to study how the natural curvature of root canals was modified when using the Hero 642 nickel-titanium rotary system. METHODOLOGY:Twenty-four canals were selected in freshly extracted human mandibular molars. Every root canal had an angle of curvature greater than 20 degrees. Roots wer...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.1365-2591.2001.00440.x
更新日期:2001-12-01 00:00:00
abstract:AIM:To compare the efficacy of reciprocating and rotary techniques with that of hand files for removing gutta-percha and sealer from root canals. METHODOLOGY:The root canals of fifty-four human extracted maxillary central incisors were cleaned and shaped using a crown-down technique to a size 40 and filled with gutta-...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12085
更新日期:2013-10-01 00:00:00
abstract:AIM:To describe the use of a new protective device to reduce aerosol dispersion in dental clinics during the COVID-19 pandemic. METHODOLOGY:The device consists of a rigid translucent acrylic structure (methyl polymethacrylate), adjusted to the dental chair, involving the patient's head, neck and chest. There is also a...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.13373
更新日期:2020-11-01 00:00:00
abstract:AIM:To report the management of an iatrogenic incident in which an endodontic file was swallowed accidentally and passed into the gastrointestinal tract. SUMMARY:A 51-year-old male swallowed a 21 mm, size 30 endodontic file during root canal treatment without rubber dam. In the absence of clinical complications, the p...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2008.01392.x
更新日期:2008-07-01 00:00:00
abstract:AIM:To evaluate the effect of irrigation with 5% sodium hypochlorite (NaOCl) alone and in conjunction with 17% ethylenediaminetetraacetic acid (EDTA) on tooth surface strain (TSS) and to analyse the influence of irrigation time, root morphology and dentine thickness. METHODOLOGY:Thirty-six single-rooted pre-molars wit...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2009.01655.x
更新日期:2010-03-01 00:00:00
abstract:AIM:To compare the effect of 5.25% NaOCl or 17% EDTA solutions on the surface topography and roughness of GTX, TF, RaCe and Hero Shaper instruments using atomic force microscopy (AFM) analysis. METHODOLOGY:Four new files of each brand were subjected to AMF analysis; then each group was subdivided into two subgroups (n...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12189
更新日期:2014-06-01 00:00:00
abstract:AIM:To investigate the apical anatomy of C-shaped canal systems in mandibular second molars by micro-computerized tomography (microCT) and stereomicroscopy. METHODOLOGY:Forty-four permanent mandibular second molars with a C-shaped root canal systems from a native Chinese population were scanned at 100 microm intervals...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2007.01193.x
更新日期:2007-04-01 00:00:00
abstract:AIM:To perform multiparametric analysis of the effects of soya milk (SM), whole milk (WM) and Hank's balanced salt solution (HBSS) on the viability of fibroblasts (HGF). The study also aimed to evaluate the influence of these solutions on bovine root dentine according to OH- and PO43- on the surface. METHODOLOGY:The H...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12739
更新日期:2017-12-01 00:00:00
abstract:AIM:This randomized clinical trial evaluated clinical sign/symptoms as well as histological pulp reactions in terms of inflammation and mineralized bridge formation after partial pulpotomy of sound human premolars and placement of a bioceramic paste (iRoot BP) or tooth-colored ProRoot MTA as pulp-covering biomaterials....
journal_title:International endodontic journal
pub_type: 杂志文章,随机对照试验
doi:10.1111/iej.12231
更新日期:2014-09-01 00:00:00
abstract::The cutting heads of the first 18 instruments in six sets of clinically used Lightspeed instruments (sizes 20-65) were examined in a scanning electron microscope (SEM). Three sets had been used by full-time faculty and discarded as follows: instrument sizes 20-32.5 after 18 treated root canals; instrument sizes 35-47....
journal_title:International endodontic journal
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
abstract:AIM:To evaluate the intratubular antimicrobial activity of several oxidant and chelating agents associated with or without surfactants in experimentally infected root canals, using confocal laser scanning microscopy. METHODOLOGY:Twenty-four dentine blocks from bovine incisors were contaminated for 5 days with Enteroco...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12863
更新日期:2018-04-01 00:00:00
abstract:AIM:To evaluate the effect of depth of insertion of an irrigation needle tip on the removal of hard-tissue debris using micro-computed tomographic (micro-CT) imaging. METHODOLOGY:Twenty isthmus-containing mesial roots of mandibular molars were anatomically matched based on similar morphological dimensions using micro-...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12648
更新日期:2017-06-01 00:00:00
abstract::Microorganisms and their by-products are considered to be the major cause of pulp and periradicular pathosis. Hence, a major objective in root canal treatment is to disinfect the entire root canal system, which requires that all contents of the root canal system be eliminated as possible sources of infection. This goa...
journal_title:International endodontic journal
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2591.2008.01540.x
更新日期:2009-04-01 00:00:00
abstract::The effect on coronal leakage of the use of either a single gutta-percha cone or cold lateral condensation of gutta-percha, with a glass ionomer sealer cement was studied. In addition, the effect of the removal of the smear layer was also determined. Eighty-eight single-rooted teeth were prepared chemomechanically usi...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1994.tb00255.x
更新日期:1994-07-01 00:00:00
abstract:AIM:The objectives of this laboratory-based study were to investigate the effects of GH12 on Enterococcus faecalis biofilm and virulence. METHODOLOGY:Minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of GH12 against E. faecalis were first determined. A time-kill assay was further cond...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.13296
更新日期:2020-07-01 00:00:00
abstract:AIM:To compare the centring ability and transportation of ProTaper Next (PTN), ProTaper Universal (PTU), Race 123 and RevoS using micro-computed tomography (μCT). METHODOLOGY:Sixty mesial root canals of thirty mandibular molars were divided virtually into coronal, middle and apical thirds, and two reproducible referen...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12658
更新日期:2017-06-01 00:00:00
abstract:AIM:The aim of this study was to determine the ability of the Quantec Series 2000 rotary nickel-titanium endodontic system to remove dentinal debris and smear layer produced during canal preparation. METHODOLOGY:A first group (control) of 12 curved root canals was prepared using conventional manual instruments and the...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.1365-2591.1999.00231.x
更新日期:1999-05-01 00:00:00
abstract:AIM:To evaluate the effect of a glide path on the amount of apically extruded debris during canal preparation using single-file systems in curved canals. METHODOLOGY:Ninety extracted mandibular molar teeth were randomly assigned to six groups (n = 15 for each group) for canal instrumentation. Endodontic access cavitie...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12484
更新日期:2016-06-01 00:00:00
abstract::The purpose of this study was to observe the quality of seal of the glass ionomer cement, Ketac-Endo, after treatment of the root canal wall. The root canals of 140 extracted human teeth were prepared biomechanically. The root canals were treated with either EDTA or received an intracanal dressing of calcium hydroxide...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1995.tb00298.x
更新日期:1995-07-01 00:00:00
abstract:AIM:To determine the bacterial microbiota in root canals associated with persistent apical periodontitis and their relationship with the clinical characteristics of patients using next-generation sequencing (NGS). METHODOLOGY:Bacterial samples from root canals associated with teeth having persistent apical periodontit...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12953
更新日期:2018-12-01 00:00:00
abstract:AIM:To evaluate the wear of root wall surfaces, the bond strength of sealers to dentine and the demineralization around root filling materials after canals were exposed to acid challenge in situ. METHODOLOGY:Eighty-seven roots of mandibular incisors were selected. Thirty-two were used in the laboratory bond strength s...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12858
更新日期:2018-03-01 00:00:00
abstract:AIM:To examine the surfaces of a root tip removed during surgical endodontic treatment for the presence of microorganisms. SUMMARY:The present clinical case illustrates an endodontic retreatment of a maxillary premolar tooth with a fistula and periapical reaction. The case was under treatment for 1 year, during which ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2004.00753.x
更新日期:2004-01-01 00:00:00
abstract:AIM:To determine how instrument design affects the fatigue life of two nickel-titanium (Ni-Ti) rotary systems (Mtwo and ProTaper) under cyclic fatigue stress in simulated root canals. METHODOLOGY:Cyclic fatigue testing of instruments was performed in stainless steel artificial canals with radii of curvature of 2 or 5 ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2006.01143.x
更新日期:2006-10-01 00:00:00
abstract::When operated in air, the sonic endodontic instrument produced a movement at the driver head which resulted in a large elliptical oscillation of the file. This motion had similar properties to ultrasonically operated files in that there was a distinct variability in the magnitude of the vibratory motion between files ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1989.tb00910.x
更新日期:1989-05-01 00:00:00
abstract:AIM:To evaluate the shank-to-flute ratio in rotary nickel-titanium (Ni-Ti) instruments. METHODOLOGY:The cutting portion of 15 size 30 Ni-Ti rotary instruments, ProFile.04, ProFile.06, Pow R.02, Pow R.04 and Quantec series 2000, were examined. The handles of the instruments were fixed to a bench and supported by a remo...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2004.00755.x
更新日期:2004-06-01 00:00:00
abstract::Thirty single-rooted teeth were prepared to receive cast posts. After cementation of the post the teeth were divided into three groups. Group I did not receive any treatment, whereas the posts in groups II and III were treated with an ultrasonic device, for 2 min and 5 min, respectively. The force required for post re...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.1995.tb00157.x
更新日期:1995-01-01 00:00:00
abstract:AIM:To compare in vitro the cleanliness of root canal walls in oval-shaped root canals following automated or manual instrumentation. METHODOLOGY:Forty-five oval-shaped single-rooted maxillary and mandibular premolars with straight canals were divided into three groups of 15. Automated canal preparation was performed ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2005.00938.x
更新日期:2005-06-01 00:00:00
abstract:AIM:This study was designed to examine whether enamel matrix derivative (EMD) could induce reparative dentine formation without eliciting adverse side-effects in pulpotomized teeth in the miniature swine. METHODOLOGY:Pulpotomy was performed in 36 mandibular incisor teeth from 11 adult miniature swine. Following the su...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.1365-2591.2002.00556.x
更新日期:2002-05-01 00:00:00
abstract:AIM:To evaluate the effect of multiple refreshment/activation cycles and temperature on the reaction rate of sodium hypochlorite (NaOCl) with bovine dentine during ultrasonic activated irrigation (UAI) under laboratory conditions. METHODOLOGY:The root canal walls of 24 standardized root canals in bovine incisors were ...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12125
更新日期:2014-02-01 00:00:00