Acta Stomatologica Croatica最新文献

Objective: The aim of this study was to examine whether the method of surface treatment of the acrylic teeth and reinforcement of the denture base (carbon fibers) affect the reduction of stress concentration for gap initiation at the interface of acrylic teeth and denture base as a measure of bond strength.

Materials and methods: Samples of cross-sections of acrylic teeth and denture base were isolated from four pairs of complete acrylic dentures (with and without reinforcement of the denture base) and were subsequently subjected to compressive loading in a universal testing machine simulating two different occlusions. Selected groups of acrylic teeth (central incisors, first premolars, and first molars) from complete dentures were treated in various ways (untreated, mechanical, chemical, and mechanical-chemical). The gap size at the interface of acrylic tooth and denture base was measured using a light inverted microscope on selected acrylic teeth of individual quadrants. The one-way analysis of variance was used to investigate the influence of denture base reinforcement and different methods of surface treatment of the acrylic tooth on bond strength at the level of statistical significance of p ≤ 0.001.

Results: Microscopic analysis of gap size measured at five selected points at the interface between the acrylic teeth and the base of the complete denture ranged from 40 to 144 micrometers. The one-way analysis of variance showed a statistically significant difference between the arithmetic means of the measured gap sizes concerning different methods of surface treatment of the acrylic teeth.

Conclusion: The fracture strength, or load-bearing capacity, of complete dentures reinforced with carbon fibers was increased compared to complete dentures with non-reinforced bases. Reduction in gap size at the interface between the acrylic teeth and the base of complete dentures was influenced by the mechanical-chemical treatment of the lower surface of acrylic teeth, while reinforcement of the complete denture base with carbon fibers had no effect on the bond strength.

Objective: The aim was to test the Belgrade age formula based on the calculation of open apices of two permanent mandibular teeth on a Bosnian children population and compare its accuracy with European formula.

Material and methods: We included 412 panoramic images of children (204 female and 208 male) 7 to 13 years of age. We assessed the performance of both methods (the European formula and the BAF) and compared their results in both sexes.

Results: The results showed a high point of average understanding between the age estimated by chronological age and the European formula (ICC=0.927, 95% CI 0.904-0.944, p<0.001)., BAF also confirmed a high point of agreement with chronological age in boys (ICC=0.941, 95% CI 0.922-0.955, p<0.001) and girls (ICC=0.913, 95% CI 0.886-0.934, p<0.001). BAF was better than the European formula in estimating age in males (0.4448±0.9135 vs. 0.9807±0.9422).

Conclusion: The Belgrade Age Formula (BAF) demonstrates comparable accuracy to the European formula for age determination in Bosnian children, while offering the advantage of being easier and faster to use. This makes the BAF a practical alternative in clinical and research settings where efficiency and reliability are essential.

Objective: The objective of the study was to investigate the influence of different irrigation protocols on the shear bond strength (SBS) of self-adhesive resin cement (SARC) on primed radicular dentin.

Methods: Radicular dentin slabs (N=58) were embedded in acrylic. Subsequently, they were polished and randomly assigned to five experimental groups (N=8-12) and one control group, CG (N=8). Irrigation solutions used were 2.5% sodium hypochlorite (H), 17% ethylenediamine tetraacetic acid (EDTA), 9% etidronic acid with hypochlorite (HEDP), 0.9% saline solution (SS), and 2% chlorhexidine (CHX). Each experimental group underwent a different irrigation protocol for two minutes: 1) H/EDTA/H, 2) HEDP, 3) H/EDTA/CHX, 4) H/EDTA/SS and 5) HEDP/SS. The CG samples were not treated with any irrigation solution. After drying, the adhesive-enhancing primer (AEP) and dual-curing SARC were applied to the radicular dentin using molds corresponding to the Ultra Tester (Ultradent Products, South Jordan, USA). The specimens were stored at 37 °C in distilled water and broken after 10 days in shear mode. The results were analyzed using ANOVA and post-hoc Games-Howell test, α=0.05.

Results: CG exhibited the highest SBS. With the exception of HEDP and HEDP/SS, all experimental groups showed significantly lower SBS compared to CG (p<0.05).

Conclusions: HEDP appears to be an adequate solution for cleaning the root canal prior to dentin priming and fiber post cementation with SARC.

Objective: The objective of this study was to evaluate the root canal morphology of third molars in the Bosnia-Herzegovina population.

Materials and methods: A total of 241 extracted third molars (105 maxillary and 136 mandibular) were subjected to a clearing procedure. The specimens were categorized into ten groups based on the Alavi classification for maxillary third molars (MaxTMs), and six groups were based on the Gulabivala classification for mandibular third molars (ManTMs). Root canal type according to the Vertucci classification, the presence and position of lateral canals, and intercanal communication were analyzed using a stereomicroscope x15.

Results: MaxTMs had three roots in 77.13% of the samples. Among MaxTMs, the most common morphology was three fused roots (33.33%) and Vertucci's type VIII (54. 28% of samples in Alavi's Group IV). 60.29% of ManTMs have two separate roots (Gulabivala's Groups II and III). The most prevalent types in mesial roots were type I (41.46% in Group II) and type IV (48.78% in Group III), although type I predominated in distal roots (91.24% and 100% in Groups II and III, respectively).

Conclusion: Single-rooted third molars usually have a root canal morphology that is more favorable for endodontic treatment. In contrast, third molars with fused roots often have more complex root canal morphology.

Objectives: The aim of the present study was to investigate if there are differences in mitigation acute pain following oral surgery procedures within a hospital setting and regarding various medication regimens.

Materials and methods: A systematic literature search was performed between the years 2013 and 2023, including the databases PUBMED, Cochrane and Scopus, to identify the clinical trials investigating the prescription of non-steroidal (NSAID's) anti-inflammatory drugs before or after an oral surgery. A meta-analysis with meta-regression model was employed on the primary and secondary outcomes, such as pain, swelling and trismus.

Results: Thirty-six articles were included, 6 of them being retrospective and 30 prospective, with a higher proportion of women than men, at a ratio of 1.34:1 and an average age of 31.9 years. Drugs with medium duration of action demonstrated lower values for pain and swelling. Regarding these parameters, pain and swelling, propionic acid derivatives and acetic acid derivatives exhibited lower values respectively.

Conclusions: The quality of evidence was low to very low- certainty. The meta-analysis suggests that postoperative pain, swelling and trismus following oral surgery management may be effectively treated with the following drugs: NSAID medium-duration action drugs; propionic acid derivatives for lower pain levels and acetic acid derivatives for lower swelling measures; and Ibuprofen 400mg every 8h for 3 days or less.

Clinical relevance: Anti-inflammatory and analgesic drugs are prescribed to prevent or treat dental pain. Ibuprofen 400mg was the most prescribed drug after or before an oral surgery procedure. However, the evidence is indirect and needs to be interpreted with caution.

Objectives: To clinically evaluate the effectiveness of rotary (ProTaper Next [PTN]) and reciprocating (Wave One Gold [WOG]) instrumentation techniques in eliminating bacteria from the root canals of teeth with apical periodontitis during a single-visit root canal treatment.

Materials and methods: Forty patients were randomly assigned to the WOG or PTN instrumentation techniques groups. A single-visit root canal treatment was performed on all the patients. In both groups, root canals were irrigated with 10 ml of sodium hypochlorite (NaOCl) and the final irrigation protocol was applied. Microbiological samples from the root canal were collected initially (Sample 1), after chemo-mechanical instrumentation (Sample 2), and after the final irrigation protocol (Sample 3). Quantification of bacteria at each stage of root canal treatment was performed using the culture method (colony-forming units [CFUs]), and bacterial species were identified using MALDI-TOF mass spectrometry.

Results: There were 55 aerobic and anaerobic bacterial species identified. Chemo-mechanical root canal treatment with both instrumentation techniques and the final irrigation protocol significantly reduced the number of CFUs (p<0.001). There were no statistically significant differences in antibacterial efficacy between WOG and PTN groups (p>0.05).

Conclusion: Although both root canal instrumentation techniques were highly effective in removing bacteria from the necrotic canals of teeth with chronic apical periodontitis, no complete eradication of bacteria was found in any sample.

Background: Healthcare professionals (HCPs), including doctors of dental medicine (DMDs) and doctors of medicine (MDs), use social networking sites (SNSs) for personal and professional purposes. This study aims to: (i) explore DMDs and MDs awareness of their online presence, (ii) examine how frequently and for what reasons DMDs and MDs monitor their online images, (iii) determine the prevalence of finding inaccurate, incomplete, or unprofessional information about themselves, examine that experience, and investigate actions performed regarding unprofessional or embarrassing posted material, (iv) assess concerns about their own SNSs usage and the content they post.

Methods: A cross-sectional study was conducted among DMDs and MDs in Croatia using a questionnaire.

Results: Out of 1,013 participants, 753 were active SNS users. Facebook (91.6%) and Instagram (63.1%) were the predominant SNSs used. DMDs exhibited a significantly higher inclination to utilize SNSs for professional purposes than MDs. Both groups reported a high level of proficiency in using Facebook (M=3.2, SD=0.827) and Instagram (M=2.44, SD=1.162). Approximately 55.4% of the participants repored monitoring their online presence, typically once a year or less frequently. DMDs emphasized the completeness of posted information more than MDs (U=25,623.0, p=0.001). Their highest level of concern pertained to confidentiality breaches and inaccurate medical and dental information. There are similar results for MDs and DMDs for finding erroneous information posted on SNSs.

Conclusions: This study offers insights into HCPs' online presence, and their concerns regarding SNS usage. It underscores the significance of e-professionalism, and provides recommendations for maintaining a positive online presence while mitigating potential risks.

Objective: This study aimed to explore the accuracy of three established approaches for legal age threshold estimation in a Croatian sample.

Materials and methods: Olze's third molar eruption stages, Haavikko stages, and Demirjian stages were applied in 583 orthopantomograms of Croatian children and adolescents aged 10.00-20.99 years old. The left mandibular second and third molar were assessed. Tooth formation and eruption chronology were established. Receiver operating characteristic (ROC) curves were performed to assess the classification ability of predictive variables for estimating 16- and 18-year-old thresholds.

Results: Havikko stage, Demirjian stage and eruption stages in tooth 37 performed poorly for 16-year-old and 18-year-old thresholds. Tooth 38 provide value information for these two age thresholds estimation. For 16-year-old threshold, Haavikko Stage Rc and Demirjian Stage G both yielded Sp over 98% and Bayes PTP over 95% in both sexes. yielded Sp over 98% and Bayes PTP over 95% in both sexes. Eruption stage C yielded Sp over 98%, Bayes PTP over 96% in males, and lower in females (Sp 96.7%, Bayes PTP 88.2%). For 18-year-old threshold, Haavikko stage Ac and Demirjian stage H both yielded 100% Sp and Bayes PTP. Eruption stage D yielded Sp over 96%, Bayes PTP over 90% in both sexes, slightly higehr in females than males. Mean age of tooth 37 at Haavikko stage Ac, Demirjian stage F, H and eruption stage D was statistically lower in females (p<0,05).

Conclusion: Croatian population-based data on dental maturity were presented. Haavikko stage Rc, Demirjian stage G, eruption stage C and respective advanced stages in tooth 38 are effective for 16-year-old threshold classification. Haavikko stage Ac, Demirjian stage H and eruption stage D are effective for 18-year-old threshold classification.

Objectives: The aim of this randomized controlled trial was to see if the minimally invasive approach (reduced restoration thickness) would result in good clinical success of monolithic ceramic crowns compared to conventional layered all-ceramic crowns, and thus be an alternative to conventional tooth preparation.

Materials and methods: The ceramic that was investigated was IPS e.max lithium-disilicate ceramic produced using two different processing methods. A comparison was made between monolithic crowns with reduced thickness and standard layered crowns. Fifty-two patients, who had undergone endodontic treatment on either a premolar or molar, were randomly assigned into two groups. The teeth intended for layered crowns underwent to a 2 mm occlusal reduction with a 1 mm rounded shoulder, whereas the teeth intended for monolithic crowns underwent to a 1 mm reduction in the occlusal area with a 0.6 mm rounded shoulder. The clinical success was evaluated in eight categories using modified United States Public Health Service (USPHS) criteria. The observation period was 36 months, with control appointments every 6 months.

Results: There was no significant difference in clinical success between monolithic and conventional layered crowns after 3 years. One monolithic crown fractured while all other crowns were intact and the survival rate was 96%. All layered crowns were intact and the survival rate was 100%.

Conclusion: The results of this study indicate that the minimally invasive approach can be a good alternative to conventional tooth preparation. IPS e.max lithium-disilicate ceramic demonstrated an exceptional three-year survival rate independently of the thickness of the material.

Objective: The aim of this study was to assess the periodontal disease parameters in patients with ischemic stroke.

Materials and methods: The study included 21 patients with ischemic brain stroke and a control group that was matched in number, age, and gender. All participants underwent a standard periodontal examination. The inclusion criterion of this study was the presence of at least 15 teeth. Periodontal epithelial surface area, periodontal inflamed surface area (PISA), and periodontal disease stage were determined. All participants were given a questionnaire to determine oral health-related quality of life (OHQL). Stroke risk factors were assessed.

Results: Stroke patients had a significantly higher OHQL score than the control group (20.81 vs. 12.57) and a full-mouth plaque score (FMPS, 27.57 vs. 16.83), while full-mouth bleeding score (FMBS) was significantly higher in the control group than in the hospital group (10.17 vs. 6.42). For PISA, statistically significant negative correlations were found for smoking, cholesterol levels, and LDL levels, while significant positive correlations were found for FMBS, clinical attachment level and probing depth.

Conclusion: Although PISA does represent the amount of periodontal tissue that is inflamed, tooth loss due to advanced periodontal disease combined with oral hygiene limitations imposed by the hospital setting and the stroke recovery process remain the most significant obstacles for a more meaningful understanding of the data represented by specific clinical, laboratory and various demographic parameters that characterize the two diseases.