Clinical Oral Investigations最新文献

{"title":"Qualitative somatosensory evaluation of recipient and donor sites of subepithelial connective tissue grafts: a preliminary study.","authors":"Esther Belotti do Nascimento, Talyta Sasaki Jurkevicz, Leonardo Rigoldi Bonjardim, Adriana Campos Passanezi Sant' Ana, Carla Andreotti Damante, Mariana Schutzer Ragghianti Zangrando","doi":"10.1007/s00784-024-05933-7","DOIUrl":"https://doi.org/10.1007/s00784-024-05933-7","url":null,"abstract":"<p><strong>Objectives: </strong>The subepithelial connective tissue graft (SCTG) plus coronal advanced flap is commonly evaluated by clinical parameters, but potential sensory changes (patients' perception of painful or painless sensations) need to be further explored. This preliminary study aimed to qualitatively evaluate the somatosensory profile of recipient and palatal donor sites of SCTG.</p><p><strong>Materials and methods: </strong>Sensory tests were applied at SCTG recipient and donor sites at baseline, after 3 and 6 months. A single calibrated examiner applied Douleur Neuropathique 4 questionnaire (DN4), qualitative sensory test (QualST), discriminating the areas as hypersensitive, hyposensitive or normosensitive, and two-point acuity test. Descriptive statistics, non-parametric Kruskal Wallis test for QualST evaluation and ANOVA for Two-point test (p < 0.05) were used.</p><p><strong>Results: </strong>QualST revealed that recipient areas presented no significant differences in tactile, pressure and thermal tests. Brush test revealed hyposensitivity after 3 months (p = 0.03). In donor areas, only thermal evaluation showed a significant difference (p = 0.01), being hypersensitive after 3 months and hyposensitive after 6 months. At baseline, all evaluations in recipient and donor areas were normosensitive. According to DN4, no patient reported pain in recipient and donor sites. Non-painful sensory perception was reported as numbness in recipient (3.14% of patients) and donor (18.4%) areas. No significant differences were found for two-point acuity test values.</p><p><strong>Conclusions: </strong>Somatosensory variations were observed in donor and recipient areas using qualitative tests, with no detection of painful sensations, only non-painful sensations of numbness and electric shock.</p><p><strong>Clinical relevance: </strong>This preliminary study demonstrated that alterations of hypo- and hypersensitivity may occur in donor and recipient areas of gingival grafts. However, when present, these alterations were non-painful and did not impact oral functions.</p><p><strong>Clinical registration: </strong>ReBEC #RBR-7zz3b6p.</p>","PeriodicalId":10461,"journal":{"name":"Clinical Oral Investigations","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142342893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy of botulinum neurotoxin A in persistent idiopathic dentoalveolar pain: a case series.","authors":"Katia Rupel, Florian Martina, Ottaviani Giulia, Di Lenarda Roberto, Manganotti Paolo, Rizzo Roberto","doi":"10.1007/s00784-024-05935-5","DOIUrl":"https://doi.org/10.1007/s00784-024-05935-5","url":null,"abstract":"<p><strong>Objectives: </strong>Persistent idiopathic dentoalveolar pain (PIDP) is a challenging clinical entity associated with both physical and emotional consequences. Currently, the management is symptom-based and includes both topical and/or systemic treatments. More recently, botulinum neurotoxin-A (BONT-A) has been suggested as a treatment option.</p><p><strong>Materials and methods: </strong>We present a case series of 9 patients (5 female) with mean age 56 ± 15 diagnosed with PIDP. All patients reported prior experience with systemic drugs without a sufficient pain-relieving effect. BONT-A (BOTOX, Allergan) 100 U diluted with saline solution was used and the dose ranged from 20U to 50U distributed in 3 sites (intraoral and/or extraoral) per session. Patients underwent further injections (50U) monthly if pain severity measured using a Numerical Rating Scale (NRS 0-10) was still > 3 for 3 months. Pain severity and characteristics were recorded at baseline (T0), after 1 month (T1), 2 months (T2) and 3 months (T3).</p><p><strong>Results: </strong>Mean pain intensity at baseline was NRS 6 (4-10). Latency before analgesic effect was at least 5-10 days after injection. Minor adverse effects were sickness and muscular hypotonia. Pain significantly reduced to NRS 4 (0-8) at T1, to NRS 2 (0-8) at T2 and to NRS 2 (NRS 0-8) at T3. Patients' functional variables (discomfort while chewing, talking, swallowing) were also recorded.</p><p><strong>Conclusions: </strong>BONT-A is widely used and although the exact mechanism of action remains unclear, it can be used effectively in reducing pain for a variety of conditions including PIDP.</p><p><strong>Clinical relevance: </strong>Our results suggest that BONT-A seems to be an alternative therapeutic approach for patients with PIDP.</p>","PeriodicalId":10461,"journal":{"name":"Clinical Oral Investigations","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142342968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Outcomes of vital pulp treatment in permanent teeth with carious pulp exposure with signs and symptoms of irreversible pulpitis.","authors":"Pasukarn Sriudomdech, Busayarat Santiwong, Pairoj Linsuwanont","doi":"10.1007/s00784-024-05923-9","DOIUrl":"https://doi.org/10.1007/s00784-024-05923-9","url":null,"abstract":"<p><strong>Objective: </strong>To investigate the outcomes and factors influencing the success of vital pulp treatment (VPT) in permanent teeth with carious pulp exposure and signs and symptoms of irreversible pulpitis (IP).</p><p><strong>Materials and methods: </strong>Dental records from 2016 to 2023 of patients who received VPT for carious pulp-exposed permanent teeth with IP symptoms were reviewed. Outcomes were assessed using clinical and radiographic criteria. Univariate and multivariate analyses were performed to identify factors affecting treatment success. The Kaplan-Meier estimator was used to compare survival probabilities.</p><p><strong>Results: </strong>The overall success and survival rates were 88.24% and 97.06%, respectively. Success rates for direct pulp capping, partial pulpotomy, and full pulpotomy were 87.7%, 92.0%, and 87.7%, respectively. Key factors influencing outcomes included the presence of periapical radiographic lesions, type of pulp dressing material, and quality of the final restoration. Full pulpotomy demonstrated the highest survival time, followed by partial pulpotomy and direct pulp capping.</p><p><strong>Conclusion: </strong>VPT in permanent teeth with carious pulp exposure and IP symptoms shows high success rates. Crucial factors include periapical radiographic findings, type of pulp dressing material, and quality of the final restoration. Full pulpotomy exhibited the longest survival time.</p><p><strong>Clinical relevance: </strong>VPT in teeth with IP symptoms shows promising outcomes, highlighting the importance of certain clinical factors in treatment success.</p>","PeriodicalId":10461,"journal":{"name":"Clinical Oral Investigations","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142342891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Co-doped titanium dioxide nanoparticles decrease the cytotoxicity of experimental hydrogen peroxide gels for in-office tooth bleaching.","authors":"Matheus Kury, Rafael Antonio de Oliveira Ribeiro, Carlos Alberto de Souza Costa, Fernando Luís Esteban Florez, Vanessa Cavalli","doi":"10.1007/s00784-024-05916-8","DOIUrl":"https://doi.org/10.1007/s00784-024-05916-8","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the efficacy and cytotoxicity of experimental 6% and 35% hydrogen peroxide gels (HP6 or HP35) incorporated with titanium dioxide nanoparticles (NP) co-doped with nitrogen and fluorine and irradiated with a violet LED light (LT).</p><p><strong>Methods: </strong>Bovine enamel-dentin disks adapted to artificial pulp chambers were randomly assigned to bleaching (n = 8/group): NC (negative control), NP, HP6, HP6 + LT, HP6 + NP, HP6 + NP + LT, HP35, HP35 + LT, HP35 + NP, HP35 + NP + LT, and commercial HP35 (COM). Color (ΔE₀₀) and whiteness index (ΔWI_D) changes were measured before and 14 days after bleaching. The extracts (culture medium + diffused gel components) collected after the first session were applied to odontoblast-like MDPC-23 cells, which were assessed concerning their viability, oxidative stress, and morphology. The amount of HP diffused through the disks was determined. Data were analyzed by generalized linear models or Kruskal Wallis Tests (α = 5%).  RESULTS: HP6 + NP + LT exhibited ΔE₀₀ and ΔWI_D higher than HP6 (p < 0.05) and similar to all HP35 groups. HP6 + NP + LT showed the lowest HP diffusion, and the highest cell viability (%) among bleached groups, preserving cell morphology and number of living cells similar to NC and NP. HP6 + LT, HP6 + NP, and HP6 + NP + LT exhibited the lowest cell oxidative stress among bleached groups (p < 0.05). HP35, HP35 + LT, and HP35 (COM) displayed the lowest cell viability.</p><p><strong>Conclusion: </strong>HP6 achieved significantly higher color and whiteness index changes when incorporated with nanoparticles and light-irradiated and caused lower cytotoxicity than HP35 gels. The nanoparticles significantly increased cell viability and reduced the hydrogen peroxide diffusion and oxidative stress, regardless of HP concentration.</p><p><strong>Clinical significance: </strong>Incorporation of co-doped titanium dioxide nanoparticles combined with violet irradiation within the HP6 gel could promote a higher perceivable and acceptable efficacy than HP6 alone, potentially reaching the optimal esthetic outcomes rendered by HP35. This approach also holds the promise of reducing cytotoxic damages and, consequently, tooth sensitivity.</p>","PeriodicalId":10461,"journal":{"name":"Clinical Oral Investigations","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142342965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Medication-related osteonecrosis of the jaw: a retrospective single center study of recurrence-related factors after surgical treatment.","authors":"Han-Jin Ruan, Meng-Yu Li, Zhi-Yuan Zhang, Hai-Long Ma, Yue He","doi":"10.1007/s00784-024-05911-z","DOIUrl":"https://doi.org/10.1007/s00784-024-05911-z","url":null,"abstract":"<p><strong>Objectives: </strong>To provide an overview of the features of patients with medication-related osteonecrosis of the jaw (MRONJ) and explore recurrence-related factors after surgery.</p><p><strong>Materials and methods: </strong>All pathological records of patients diagnosed with osteonecrosis or osteomyelitis of the jaw were reviewed. Only patients who had a history of use of medication related to bone turnover were included. All demographic and clinical characteristics were collected during review. Univariate and logistic regression analyses were performed to evaluate the associations between risk factors and recurrence. A p value < 0.05 was considered to indicate statistical significance in all analyses.</p><p><strong>Results: </strong>A total of 313 patients were ultimately included. Most patients (89.14%) underwent bone turnover-related treatment due to malignancy. The breast and prostate were the most common locations of primary tumors in females and males, respectively. Almost all MRONJ patients experienced inflammatory symptoms. Recurrence occurred in 55 patients at 60 locations. The total recurrence rate was 16.85%, with no significant differences between the maxilla and mandible. Extensive surgery and flap transfer were strongly related to a lower recurrence risk. Nearly 80% of patients had recurrence-related symptoms within 6 months.</p><p><strong>Conclusion: </strong>When MRONJ is treated with surgical methods, extensive resection and flap transfer can reduce recurrence risk. Six-month follow-up is needed to exclude recurrence after surgery.</p><p><strong>Clinical relevance: </strong>This study revealed the surgical-related risk factors, such as extensive surgery and flap transfer, when treating MRONJ patients, and 6-month follow-up is needed to detect recurrence. This could provide clinical guidance for head and neck surgeons.</p>","PeriodicalId":10461,"journal":{"name":"Clinical Oral Investigations","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11422288/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142342889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of interproximal enamel reduction on interradicular bone volume in clear aligner therapy: a three-dimensional cone-beam computed tomography study.","authors":"Fadia Hussein Darwiche, Nada E Tashkandi, Maher AlGhamdi, Luba Abdulrahman AlMuhaish, Suliman Y Shahin","doi":"10.1007/s00784-024-05938-2","DOIUrl":"https://doi.org/10.1007/s00784-024-05938-2","url":null,"abstract":"<p><strong>Objectives: </strong>To assess the effect of inter-proximal enamel reduction (IPR) on interradicular bone volume and incisal inclination in patients undergoing clear aligner therapy (CAT).</p><p><strong>Materials and methods: </strong>The study sample consisted of 60 cases which underwent orthodontic CAT, in a private clinic in Dammam, KSA. A total of 120 CBCT scans (60 pre-treatment and 60 post- treatment) were measured using the CS 3D Imaging software to examine bone volume (using height, width, and depth of the interproximal area) and incisal inclination. The corresponding ClinCheck models were collected to determine the amount and locations of interproximal reduction performed. Little's Irregularity Index values were measured using OrthoCAD software. Paired sample t-test was used to address the measurements of bone height, width, depth, bone volume, and inclination of upper and lower incisors before and after IPR.</p><p><strong>Results: </strong>IPR did not affect the upper or lower bone volume except at LR3-2 and UL 2 - 1 where a significant difference between the bone volume with and without IPR was detected (p = 0.02 and p = 0.04 respectively). Upper and lower incisor inclination showed a statistically significant decrease after IPR. There was no correlation between IPR and bone volume difference between upper and lower teeth except at LR3-2 and UL 2 - 1.</p><p><strong>Conclusions: </strong>IPR had no significant effect on inter-radicular bone volume except at areas of lower right canine-lateral and at areas of upper left central-lateral. There was a positive correlation between the amount of IPR and incisal inclination.</p><p><strong>Clinical relevance: </strong>The current study findings suggest that while IPR has a minimal and localized effect on bone volume in certain areas, it plays a role in adjusting incisal inclination, highlighting its significance in the careful planning of orthodontic treatment using clear aligners.</p>","PeriodicalId":10461,"journal":{"name":"Clinical Oral Investigations","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142342967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Accuracy and consistency of ChatGPT-3.5 and - 4 in providing differential diagnoses in oral and maxillofacial diseases: a comparative diagnostic performance analysis.","authors":"Saygo Tomo, Jérôme R Lechien, Hugo Sobrinho Bueno, Daniela Filié Cantieri-Debortoli, Luciana Estevam Simonato","doi":"10.1007/s00784-024-05939-1","DOIUrl":"10.1007/s00784-024-05939-1","url":null,"abstract":"<p><strong>Objective: </strong>To investigate the performance of ChatGPT in the differential diagnosis of oral and maxillofacial diseases.</p><p><strong>Methods: </strong>Thirty-seven oral and maxillofacial lesions findings were presented to ChatGPT-3.5 and - 4, 18 dental surgeons trained in oral medicine/pathology (OMP), 23 general dental surgeons (DDS), and 16 dental students (DS) for differential diagnosis. Additionally, a group of 15 general dentists was asked to describe 11 cases to ChatGPT versions. The ChatGPT-3.5, -4, and human primary and alternative diagnoses were rated by 2 independent investigators with a 4 Likert-Scale. The consistency of ChatGPT-3.5 and - 4 was evaluated with regenerated inputs.</p><p><strong>Results: </strong>Moderate consistency of outputs was observed for ChatGPT-3.5 and - 4 to provide primary (κ = 0.532 and κ = 0.533 respectively) and alternative (κ = 0.337 and κ = 0.367 respectively) hypotheses. The mean of correct diagnoses was 64.86% for ChatGPT-3.5, 80.18% for ChatGPT-4, 86.64% for OMP, 24.32% for DDS, and 16.67% for DS. The mean correct primary hypothesis rates were 45.95% for ChatGPT-3.5, 61.80% for ChatGPT-4, 82.28% for OMP, 22.72% for DDS, and 15.77% for DS. The mean correct diagnosis rate for ChatGPT-3.5 with standard descriptions was 64.86%, compared to 45.95% with participants' descriptions. For ChatGPT-4, the mean was 80.18% with standard descriptions and 61.80% with participant descriptions.</p><p><strong>Conclusion: </strong>ChatGPT-4 demonstrates an accuracy comparable to specialists to provide differential diagnosis for oral and maxillofacial diseases. Consistency of ChatGPT to provide diagnostic hypotheses for oral diseases cases is moderate, representing a weakness for clinical application. The quality of case documentation and descriptions impacts significantly on the performance of ChatGPT.</p><p><strong>Clinical relevance: </strong>General dentists, dental students and specialists in oral medicine and pathology may benefit from ChatGPT-4 as an auxiliary method to define differential diagnosis for oral and maxillofacial lesions, but its accuracy is dependent on precise case descriptions.</p>","PeriodicalId":10461,"journal":{"name":"Clinical Oral Investigations","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142307266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing surgical occlusion setting in orthognathic surgery planning using mixed reality technology: a comparative study.","authors":"Max Wilkat, Felix Schrader, Julia Trusch, Nadia Karnatz, Kathrin Becker, Leonardo Saigo, Majeed Rana","doi":"10.1007/s00784-024-05930-w","DOIUrl":"10.1007/s00784-024-05930-w","url":null,"abstract":"<p><strong>Objectives: </strong>Orthognathic surgery necessitates precise occlusal alignment during surgical planning, traditionally achieved through manual alignment of physical dental models as the recognized gold standard. This study aims to evaluate the efficacy of mixed reality technology in enhancing surgical occlusion setting compared to traditional physical alignment and an established virtual method, addressing the research question: Can mixed reality technology improve the accuracy and efficiency of occlusion setting in orthognathic surgery planning?</p><p><strong>Materials & methods: </strong>This experimental study compared the surgical occlusion settings of 30 orthognathic cases using three methods: a new virtual method with mixed reality technology, the traditional gold standard of physical alignment, and an established virtual occlusion method using the IPS Case Designer (KLS Martin SE & Co. KG, Tuttlingen, Germany).</p><p><strong>Results: </strong>Results indicated that surgical occlusions set with mixed reality technology were comparable to the conventional method in terms of maxillary movement and occlusal relationship. Differences observed were within the inter-observer variability of the gold standard. Both virtual methods tended to position the maxilla more anteriorly, resulting in fewer occlusal contacts. However, virtual occlusion demonstrated clinical applicability, achieving an average of 11 occlusal contacts with a bilaterally symmetrical distribution along the dental arch.</p><p><strong>Conclusions: </strong>The mixed reality environment provides an intuitive and flexible experience for setting surgical occlusion, eliminating the need for costly 3D-printed physical models or the automatic calculations required by other virtual occlusion methods, thereby offering maximum freedom.</p><p><strong>Clinical relevance: </strong>As a novel form of virtual occlusion, it presents a comprehensive tool that contributes to a timely and cost-effective full digital workflow of orthognathic surgery planning.</p>","PeriodicalId":10461,"journal":{"name":"Clinical Oral Investigations","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11422454/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142307269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to: Comparison of platelet-rich fibrin (PRF) produced using 3 commercially available centrifuges at both high (~ 700 g) and low (~ 200 g) relative centrifugation forces.","authors":"Richard J Miron, Hudi Xu, Jihua Chai, Jiaolong Wang, Shihang Zheng, Mengge Feng, Xiaoxin Zhang, Yan Wei, Yan Chen, Carlos Fernando de Almeida Barros Mourão, Anton Sculean, Yufeng Zhang","doi":"10.1007/s00784-024-05949-z","DOIUrl":"https://doi.org/10.1007/s00784-024-05949-z","url":null,"abstract":"","PeriodicalId":10461,"journal":{"name":"Clinical Oral Investigations","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142307268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An innovative evaluation method for clinical comparative analysis of occlusal contact regions obtained via intraoral scanning and conventional impression procedures: a clinical trial.","authors":"Donghao Wei, Xiaosong Yi, Ye Lin, Ping Di","doi":"10.1007/s00784-024-05940-8","DOIUrl":"10.1007/s00784-024-05940-8","url":null,"abstract":"<p><strong>Objectives: </strong>To compare the occlusal contact regions (OCRs) obtained through an intraoral scanning system and conventional impression procedures via an innovative evaluation method.</p><p><strong>Materials and methods: </strong>Fifteen participants with complete dentitions and stable centric occlusion were included. Three groups were created based on the technique used to obtain the OCRs of quadrant posterior teeth at the maximal intercuspal position: 100 μm articulating paper (Control), an intraoral scanner (Test 1, T1) and conventional impression procedure (Test 2, T2). OCRs of control group were digitized by the intraoral scanner, while all conventional impressions were cast and digitized by an extraoral scanner. The virtual occlusal records of the 2 test groups were obtained by buccal bite registration. The OCRs within 100 μm in the 3 groups were three-dimensionally superimposed based on the tooth surfaces and the area of OCRs (S_C, S_T1, S_T2) was calculated. The area of overlapping OCRs (S_O) between the test groups and the control group was calculated. In the two test groups, the consistency rate of OCRs (S_O/S_C) and the positive rate of OCRs (S_O/S_T) were calculated and compared. For occlusal tightness evaluation, the mean occlusal clearances (OC) as well as minimum OC between the upper and lower models were calculated and compared.</p><p><strong>Results: </strong>The consistency rate of OCRs was 0.73 ± 0.17 for T1 group and 0.23 ± 0.13 for T2 group (p < 0.001). The positive rate of OCRs was 0.67 ± 0.15 for T1 group and 0.56 ± 0.23 for T2 group (p = 0.143). The mean OC was 51.32 ± 16.04 μm for T1 group and 68.20 ± 18.15 μm for T2 group (p = 0.024). The minimum OC was - 61.74 ± 35.38 μm for T1 group and 4.09 ± 27.15 μm for T2 group (p < 0.001).</p><p><strong>Conclusions: </strong>For obtaining occlusal records in the quadrant posterior region, the tested intraoral scanning system was more reliable for recording occlusal contact regions and showed higher occlusal tightness compared with conventional impression procedures.</p><p><strong>Clinical relevance: </strong>(1) The evaluation method can assist clinicians in making more objective analysis and comparisons among different sources of virtual occlusal records. (2) Occlusal tightness is a key and indispensable indicator in the evaluation of virtual occlusal records, and it can be quantified by measuring the occlusal clearance utilizing the current evaluation method.</p>","PeriodicalId":10461,"journal":{"name":"Clinical Oral Investigations","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11422258/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142307267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}