Translation and validation of the Croatian version of the Oral Impacts on Daily Performances (OIDP) scale

oai:www.unirepository.svkri.uniri.hr:medri_3029Background/Aim. Among numerous sociodental indicators the Oral Impacts on Daily Performance (OIPD) is one of the most broadly applied. The aim of this study was to develop and test psychometric properties of a Croatian version of OIDP scale. Methods. The OIDP instrument was translated from English to Croatian in a forward-backward method. The Croatian version was tested for reliability, construct validity and responsiveness on a sample of 702 participants (255 men), aged 18-86 years. Results. Internal consistency of Croatian version of the OIDP was acceptable (alpha = 0.80) and 69.4% of the examinees had oral impacts relating to one or several performances. The most frequently affected performance was eating (53.7%). The test-retest reliability was high (r = 0.99; 95% CI: 0.97-0.99), the mean difference between the OIDP summary scores in two-week interval was not statistically significant. In construct validity testing there was statistically significant correlation between OIDP and self-assessed general and oral health, somatisation, depression and Oral Health Impact Profile ranging from 0.157 to 0.516. Responsiveness was confirmed by a significant reduction of oral impacts on daily performances in subjects before and after treatment of acute dental pain (p < 0.001). Conclusion. The Croatian OIDP index showed good psychometric properties in terms of construct validity, internal consistency, test-retest reliability and responsiveness confirming its appropriateness for use among Croatian population

Patients’ general satisfaction wi th the appearance of anterior maxillary teeth

Background/Aim. Dental appearance plays an important role in practically all personal social interactions. The main factors that define the dental appearance are tooth colour, shape and position, quality of restoration, and the general position of the teeth in arch, especially in the anterior region. The aim of this study was to evaluate the impact of dental status (tooth shape, fracture, dental and prosthetic restorations and presence of plaque) on patient's satisfaction with the dental appearance, controlling for the age and gender. Methods . A total of 700 Caucasian subjects (439 women) aged 18–86 (median 45 years) participated in the cross-sectiona l study. Study included clinical examination and self-administrat ed questionnaire based on self- perceived aesthetics and satisfaction with the appearance of their maxillary anterior teeth. Results. A regression analysis demonstrated that presence of dental plaque, tooth fracture, composite fillings and crowns had significant independent con- tribution and were negative predic tors of satisfaction with teeth appearance. Participants with presence of plaque on upper teeth ( p < 0.001), fractures ( p = 0.005), composite fillings ( p < 0.001) and crowns ( p = 0.032) were less satisfied than those without it. Model explains 12% or variance of general satisfaction with the appearance of maxillary frontal teeth ( p < 0.001) and the major contributors are composite fillings (5.3%) and plaque (3.2%). Tooth shape, age and gender were not significant predictors of satisfaction. Conclusion. Satisfac- tion with the teeth appearance is under the influence of many factors with significant negative influence of presence of dental plaque, fractures, composit e restorations, and crowns

Analysis of the root canal irrigation in endodontic therapy by computational fluid dynamics method

Cilj istraživanja: Uporabom računalne dinamike fluida (CFD), analizirati utjecaj vrste i dubine aplikacije irigacijske igle, te ulaznog masenog protoka irigatora, na brzinu, tlak i uzorak protoka irigatora tijekom simulirane endodontske irigacije. Materijal i metode: Nakon instrumentacije, korijenski kanal humanog gornjeg očnjaka ispunjen je kontrastnim fluidom i skeniran pomoću kompjutorizirane tomografije (CT). Trodimenzionalni oblik kanala dobiven obradom CT snimki prenesen je u Computer-Assisted Design (CAD) računalni program. Dvije kontrolne točke, u cilju mjerenja brzine i tlaka irigatora, postavljene su u apeksnom dijelu korijenskog kanala. Tri CAD modela različitih 27G irigacijskih igala (narezana i zakošena igla otvorenog vrha, te igla zatvorenog vrha s otvorom sa strane) postavljene su na 25, 50, 75, i 95% radne duljine instrumentacije, a za svaku poziciju igle postavljeni su ulazni volumni protoci irigatora od 0,05; 0,1; 0,2; 0,3 i 0,4 ml s-1. Ukupno 60 simulacija endodontske irigacije izvršeno je pomoću CFD komercijalnog računalnog programa. Rezultati: Vrijednosti brzine i uzorci protoka irigatora pokazuju manju učinkovitost irigacije kod primjene igle zatvorenog vrha s otvorom sa strane, u odnosu na igle otvorenog vrha, narezanu i zakošenu, pri istoj dubini aplikacije irigacijske igle. Porast volumnog protoka praćen je porastom tlaka irigatora, za sve vrste i dubine aplikacije irigacijskih igala korištene u ovom istraživanju. Zaključak: Oblik humanog korijenskog kanala dobiven uporabom kompjutorizirane tomografije moguće je primijeniti u analizi endodontske irigacije metodom računalne dinamike fluida. Vrsta i dubina aplikacije irigacijske igle, kao i ulazni volumni protok Virigatora, utječu na sve analizirane vrijednosti; brzinu i tlak, te uzorak protoka irigatora.Objectives: The influence of the needdle type, insertion depth and irrigant flow rate on irrigant flow pattern, flow velocity and apical pressure during endodontic irrigation was analyzed by ex-vivo based computational fluid dynamics (CFD) method. Material and Methods: Human upper canine root canal was prepared using rotary files, contrast fluid was introduced and the root canal was scanned by computed tomography (CT) providing three-dimensional object that was exported to computer-assisted design (CAD) software. Two probe points were established in apical portion of root canal model for flow velocity and pressure measurment. Three different irrigation 27G needle CAD models (closed-end side-vented, notched open-end and bevel open-end) were created and placed at 25, 50, 75 and 95% of the working length. Flow rates of 0.05, 0.1, 0.2, 0.3 and 0.4 ml s-1 were aplied. Total of 60 irrigation simulations were performed by computational fluid dynamics (CFD) fluid flow solvent software. Results: Closed-end side-vented needle requires insertion depth closer to instrumentation working lenght, regarding irrigant replacement efficiency, comparing to open-end irrigation needle types that show increased irrigant apical pressure and velocity. The increase of flow rate was followed by increased irrigant apical pressure for all irrigation needle types and needle insertion depths analyzed in this study. Conclusions: The human root canal shape obtained by CT is applicable in the creation of the CFD analysis of endodontic irrigation. All the analyzed values; irrigant VIIflow pattern, velocity and pressure, are influenced by application of different irrigation needle types, as well as needle insertion depth and irrigant flow rate

Analysis of the root canal irrigation in endodontic therapy by computational fluid dynamics method

Cilj istraživanja: Uporabom računalne dinamike fluida (CFD), analizirati utjecaj vrste i dubine aplikacije irigacijske igle, te ulaznog masenog protoka irigatora, na brzinu, tlak i uzorak protoka irigatora tijekom simulirane endodontske irigacije. Materijal i metode: Nakon instrumentacije, korijenski kanal humanog gornjeg očnjaka ispunjen je kontrastnim fluidom i skeniran pomoću kompjutorizirane tomografije (CT). Trodimenzionalni oblik kanala dobiven obradom CT snimki prenesen je u Computer-Assisted Design (CAD) računalni program. Dvije kontrolne točke, u cilju mjerenja brzine i tlaka irigatora, postavljene su u apeksnom dijelu korijenskog kanala. Tri CAD modela različitih 27G irigacijskih igala (narezana i zakošena igla otvorenog vrha, te igla zatvorenog vrha s otvorom sa strane) postavljene su na 25, 50, 75, i 95% radne duljine instrumentacije, a za svaku poziciju igle postavljeni su ulazni volumni protoci irigatora od 0,05; 0,1; 0,2; 0,3 i 0,4 ml s-1. Ukupno 60 simulacija endodontske irigacije izvršeno je pomoću CFD komercijalnog računalnog programa. Rezultati: Vrijednosti brzine i uzorci protoka irigatora pokazuju manju učinkovitost irigacije kod primjene igle zatvorenog vrha s otvorom sa strane, u odnosu na igle otvorenog vrha, narezanu i zakošenu, pri istoj dubini aplikacije irigacijske igle. Porast volumnog protoka praćen je porastom tlaka irigatora, za sve vrste i dubine aplikacije irigacijskih igala korištene u ovom istraživanju. Zaključak: Oblik humanog korijenskog kanala dobiven uporabom kompjutorizirane tomografije moguće je primijeniti u analizi endodontske irigacije metodom računalne dinamike fluida. Vrsta i dubina aplikacije irigacijske igle, kao i ulazni volumni protok Virigatora, utječu na sve analizirane vrijednosti; brzinu i tlak, te uzorak protoka irigatora.Objectives: The influence of the needdle type, insertion depth and irrigant flow rate on irrigant flow pattern, flow velocity and apical pressure during endodontic irrigation was analyzed by ex-vivo based computational fluid dynamics (CFD) method. Material and Methods: Human upper canine root canal was prepared using rotary files, contrast fluid was introduced and the root canal was scanned by computed tomography (CT) providing three-dimensional object that was exported to computer-assisted design (CAD) software. Two probe points were established in apical portion of root canal model for flow velocity and pressure measurment. Three different irrigation 27G needle CAD models (closed-end side-vented, notched open-end and bevel open-end) were created and placed at 25, 50, 75 and 95% of the working length. Flow rates of 0.05, 0.1, 0.2, 0.3 and 0.4 ml s-1 were aplied. Total of 60 irrigation simulations were performed by computational fluid dynamics (CFD) fluid flow solvent software. Results: Closed-end side-vented needle requires insertion depth closer to instrumentation working lenght, regarding irrigant replacement efficiency, comparing to open-end irrigation needle types that show increased irrigant apical pressure and velocity. The increase of flow rate was followed by increased irrigant apical pressure for all irrigation needle types and needle insertion depths analyzed in this study. Conclusions: The human root canal shape obtained by CT is applicable in the creation of the CFD analysis of endodontic irrigation. All the analyzed values; irrigant VIIflow pattern, velocity and pressure, are influenced by application of different irrigation needle types, as well as needle insertion depth and irrigant flow rate

The efficacy of photon initiated photoacoustic streaming in the removal of calcium silicate based filling remnants from the root canal after rotary retreatment

The aim of the study was to evaluate the efficacy of photon initiated photoacoustic streaming (PIPS) in the removal of filling remnants from root canals after rotary retreatmant, and to examine the difference in the amount of residual material considering the type of sealer. Thirty-six extracted single- rooted human teeth were instrumented and randomly divided into three groups according to the filling material used: Group 1: EndoSequence BC Sealer (Brassler, USA) ; Group 2: MTA Fillapex (Angelus Solucoes Odontologicas, Londrina, Brasil) ; Group 3: AH Plus sealer (Dentsply DeTrey, Konstanz, Germany). Cold lateral condensation technique was used. After two weeks, the root canals were retreated with a rotary retreatment system (ProTaper Universal Retreatment, Maillefer, Ballaigues, Switzerland), followed by Er:YAG laser activated irrigation (photon initiated photoacoustic streaming, PIPS). The specimens were scanned in a micro-computed tomographic (micro-CT) device after root canal filling, after the rotary retreatment and after the PIPS. There was significant reduction in the amount of filling material after the rotary retreatment in all groups (p<0.05) ; the highest in the MTA Fillapex group (p<0.001) and no difference between the Endosequence BC and the AH Plus (p=0, 608). There was significant reduction of the filling remnants after the PIPS in all groups (p<0.05). The MTA Fillapex was the most easily retreated and Endosequence and AH Plus had similar retreatment ability. The PIPS improved the removal of filling reminants in all groups

Methods for Histological Evaluation of the Deposition of Newly Created Bone after Endodontic Therapy in the Dog - a Preliminary Report

Svrha je rada ispitati uporabu histoloških metoda kvalitativne i kvantitativne ocjene odlaganja novostvorene kosti nakon endodontske terapije kroničnog apeksnoga parodontitisa na eksperimentalnome modelu psa. Pulpne komore dviju životinja (po πest korijena) izložene su djelovanju oralne mikroflore. Endodontska terapija učinjena je nakon 35 dana ProFile® Ni-Ti rotirajućim instrumentima i Thermafill® opturatorima, a kaviteti su ispunjeni amalgamom. Zatim je jedna životinja primila intraperitonealnu injekciju vitalne boje Procion red 100 mg/kg, a druga doksiciklin 10 mg/kg peroralno tijekom 12 dana. Nakon 35 dana po endodontskoj terapiji životinje su žrtvovane, a na izrađenim histološkim pripravcima provedena je kvalitativna i kvantitativna raščlamba. Kvalitativnom raščlambom pripravaka obojenih toluidinskim modrilom moguće je analizirati novoistaloženi osteoid. Na nativnim je pripravcima, raščlambom fluorescentnih depozita Procion red i doksiciklina, moguća raščlamba i mineralizirane novostvorene kosti. Kvantitativna histomorfometrijska raščlamba pokazuje veći potencijal cijeljenja lezija u životinje u koje smo za demarkaciju novostvorene kosti uporabili doksiciklin, kompromitirajući doksiciklin kao neovisni marker.The aim of the study was to examine the use of histological methods of qualitative and quantitative evaluation of the deposition of newly created bone after endodontic therapy of chronic apical periodontitis in an experimental dog model. The pulp chambers of two animals (six roots each) were exposed to the effects of oral microflora. Endododontal therapy was performed after 35 days by ProFile® Ni-Ti rotating instruments and Thermafill® obturators, and the cavities filled with amalgam. One animal then received intraperitoneal injection of 100 mg/kg vital stain Procion Red and the other 10 mg/kg doxicyclin perorally for a period of 12 days. After 35 days of endodontic therapy the animals were sacrificed and qualitative and quantitative analysis performed on the histological specimens. Analysis of the newly deposited osteoid was possible by quantitative analysis of the specimens stained with toluidine blue. Analysis of mineralised newly created bone on the native specimens was enabled by analysis of the fluorescent deposits of Procion Red and oxycycline. Quantitative histomorphometric analysis demonstrated greater potential for healing lesions in the animal in which doxycycline was used for demarcation of newly created bone, compromising doxycycline as an independent marker

The efficacy of photon initiated photoacoustic streaming in the removal of calcium silicate based filling remnants from the root canal after rotary retreatment

The aim of the study was to evaluate the efficacy of photon initiated photoacoustic streaming (PIPS) in the removal of filling remnants from root canals after rotary retreatmant, and to examine the difference in the amount of residual material considering the type of sealer. Thirty-six extracted single- rooted human teeth were instrumented and randomly divided into three groups according to the filling material used: Group 1: EndoSequence BC Sealer (Brassler, USA) ; Group 2: MTA Fillapex (Angelus Solucoes Odontologicas, Londrina, Brasil) ; Group 3: AH Plus sealer (Dentsply DeTrey, Konstanz, Germany). Cold lateral condensation technique was used. After two weeks, the root canals were retreated with a rotary retreatment system (ProTaper Universal Retreatment, Maillefer, Ballaigues, Switzerland), followed by Er:YAG laser activated irrigation (photon initiated photoacoustic streaming, PIPS). The specimens were scanned in a micro-computed tomographic (micro-CT) device after root canal filling, after the rotary retreatment and after the PIPS. There was significant reduction in the amount of filling material after the rotary retreatment in all groups (p<0.05) ; the highest in the MTA Fillapex group (p<0.001) and no difference between the Endosequence BC and the AH Plus (p=0, 608). There was significant reduction of the filling remnants after the PIPS in all groups (p<0.05). The MTA Fillapex was the most easily retreated and Endosequence and AH Plus had similar retreatment ability. The PIPS improved the removal of filling reminants in all groups

Efficacy of reciprocating instruments in the removal of bioceramic and epoxy resin-based sealers: micro-ct analysis

The objective of this study was to evaluate the efficacy of reciprocating instruments in the removal of bioceramic and epoxy resin-based sealers using micro-CT analysis. Root canals of 40 extracted human teeth were instrumented with a size R25 Reciproc instrument. Specimens were randomly divided into two groups (n = 20) according to the root canal filling material. In the first group, root canals were obturated with AH Plus sealer and Reciproc R25 gutta-percha. In the second group, a combination of bioceramic gutta-percha (TotalFill BC) and bioceramic sealer (TotalFill BC) was used. After one week, the retreatment of all specimens was performed using Reciproc instruments. To analyze the differences in the filling remnants, specimens were scanned in a micro-CT device after obturation and after the retreatment procedure. Statistical analysis was performed using the Mann– Whitney U test (p < 0.05). A combination of bioceramic sealer and bioceramic gutta-percha was more effectively removed from canals using a reciprocating instrument, with a filling remnants volume of 4.01 ± 3.13 mm3, in comparison to the combination of epoxy resin-based sealer and gutta-percha (6.96 ± 2.70 mm3) (p < 0.05). A reciprocating instrument was more effective in removing bioceramic sealers than epoxy resin-based sealers, although none of the root canal filling materials were completely removed from the root canals

Irrigation of human prepared root canal – ex vivo based computational fluid dynamics analysis

Aim To analyze the influence of the needle type, insertion depth, and irrigant flow rate on irrigant flow pattern, flow velocity, and apical pressure by ex-vivo based endodontic irrigation computational fluid dynamics (CFD) analysis. Methods Human upper canine root canal was prepared using rotary files. Contrast fluid was introduced in the root canal and scanned by computed tomography (CT) providing a three-dimensional object that was exported to the computer-assisted design (CAD) software. Two probe points were established in the apical portion of the root canal model for flow velocity and pressure measurement. Three different CAD models of 27G irrigation needles (closed-end side-vented, notched open-end, and bevel open-end) were created and placed at 25, 50, 75, and 95% of the working length (WL). Flow rates of 0.05, 0.1, 0.2, 0.3, and 0.4 mL/s were simulated. A total of 60 irrigation simulations were performed by CFD fluid flow solver. Results Closed-end side-vented needle required insertion depth closer to WL, regarding efficient irrigant replacement, compared to open-end irrigation needle types, which besides increased velocity produced increased irrigant apical pressure. For all irrigation needle types and needle insertion depths, the increase of flow rate was followed by an increased irrigant apical pressure. Conclusions The human root canal shape obtained by CT is applicable in the CFD analysis of endodontic irrigation. All the analyzed values –irrigant flow pattern, velocity, and pressure – were influenced by irrigation needle type, as well as needle insertion depth and irrigant flow rate

Antibiotska profilaksa infekcijskog endokarditisa u stomatologiji : kardiološka praksa

Epidemiološka izvješća pokazuju da je 14-20% slučajeva infekcijskog endokarditisa (IE) povezano s ranijim stomatološkim zahvatima (oralno-kirurški zahvati, zahvati tijekom parodontološke i konzervativno-endodontske terapije te intraligamentarna anestezija) koji imaju za posljedicu tranzitornu bakterijemiju u trajanju od 10 do 15 minuta. U rizičnih bolesnika ova kratkotrajna bakterijemija dovoljna je za razvoj infekcijskog endokarditisa. Svakodnevno se susrećemo s bolesnicima rizičnim za nastanak IE upućenim na oralno kirurški zahvat (najčešće ekstrakciju zuba) u Klinički zavod za oralnu kirurgiju Klinike za kirurgiju lica, čeljusti i usta Kliničke bolnice Dubrava. Većini ovih bolesnika određujemo profilaksu IE prema posljednjim preporukama AHA. Za neke bolesnike prethodno tražimo konzultaciju kardiologa zbog osnovne bolesti i u pravilu se ovi bolesnici vraćaju i s uputama kardiologa o profilaksi IE. Primijetili smo da se stavovi i preporuke kardiologa o profilaksi IE bitno razlikuju. Pojedini kardiolozi već godinama preporućuju istu « ; ; ; profilaksu» ; ; ; koja nije u skladu s uputama AHA. Na osnovu kardiološke dokumentacije, analizirali smo preporučenu antibiotsku profilaksu IE u rizičnih kardioloških bolesnika, prije oralno kirurških zahvata preporučenu od specijalista kardiologa iz četiri zagrebačke bolnice tijekom 2003. godine. Sakupili smo ukupno 17 preporuka propisanih od 12 kardiologa. Nažalost, niti jedna preporuka nije bila u skladu s važećim preporukama AHA iz 1997. godine. Samo šest od ukupno 17 preporuka odgovara zastarjelim uputama iz 1994. godine, što je također zabrinjavajuće. Stoga smo smatrali vrijednim prikazati takve slučajeve s nadom da će možda potaknuti raspravu o zajedničkim smjernicama na dobrobit bolesnika rizičnih za nastanak IE