Treatment of Esthetic Complications with Peri-implant Soft Tissue: A Description of the "Apical Approach" Surgical Technique and Presentation of Two Clinical Cases

Peri-implant soft tissue deformities are an increasingly common phenomenon in the esthetic zone. While the most widely studied esthetic complications are peri-implant soft tissue dehiscences, there are other esthetic concerns in routine clinical practice that require investigation and treatment. Thus, this report on two clinical cases describes a surgical approach using the apical access technique to treat peri-implant soft tissue discoloration and fenestration. In both clinical scenarios, the defect was accessed via a single horizontal apical incision without removing the cement-retained crowns. A bilaminar technique using apical access with a simultaneous connective tissue graft seems to offer promising results for the treatment of peri-implant soft tissue deformities. At the 12-month reevaluation, an increase in peri-implant soft tissue thickness was observed, resolving the pathologies presented.

Accuracy of computer-aided static and dynamic navigation systems in the placement of zygomatic dental implants.

BACKGROUND: Zygomatic implants are widely used in the rehabilitation of severely atrophic maxillae, but implant placement is not without risks, and it can potentially cause damage to related anatomical structures. The aim of this study was to perform a comparative analysis of the accuracy of static navigation systems in placing zygomatic dental implants in comparison to dynamic navigation systems. METHODS: Sixty zygomatic dental implants were randomly allocated to one of three study groups, categorized by which implant placement strategy was used: A: computer-aided static navigation system (n = 20) (GI); B: computer-aided dynamic navigation system (n = 20) (NI); or C: free-hand technique (n = 20) (FHI). For the computer-aided study groups, a preoperative cone-beam computed tomography (CBCT) scan of the existing situation was performed in order to plan the approach to be used during surgery. Four zygomatic dental implants were inserted in each of fifteen polyurethane stereolithographic models (n = 15), with a postoperative CBCT scan taken after the intervention. The pre- and postoperative CBCT scans were then uploaded to a software program used in dental implantology to analyze the angular deviations, apical end point, and coronal entry point. Student's t-test was used to analyze the results. RESULTS: The results found statistically significant differences in apical end-point deviations between the FHI and NI (p = 0.0053) and FHI and GI (p = 0.0004) groups. There were also statistically significant differences between the angular deviations of the FHI and GI groups (p = 0.0043). CONCLUSIONS: The manual free-hand technique may enable more accurate placement of zygomatic dental implants than computer-assisted surgical techniques due to the different learning curves required for each zygomatic dental implant placement techniques.

Injerto de tejido conectivo en combinación con la técnica de colgajo lateralmente cerrado para el tratamiento de recesiones gingivales anteroinferiores: resultado clínico y revisión sistemática comparativa / Connective tissue grafting in combination with the laterally closed flap technique for the treatment of anteroinferior gingival recessions: Clinical outcome and comparative systematic review

Objetivo: evaluar la eficacia clínica de latécnica del túnel lateralmente cerrado coninjerto de tejido conectivo en recesiones gingivales unitarias en el área antero inferior, mediante una serie de seis casos. Otro de los objetivos fue realizar una revisión de la literatura para comparar la eficacia de la técnica de técnica del túnel lateralmente cerrado frente a la técnica de colgajo de avance coronal con injerto de tejido conectivo. Material y métodos: seis pacientes con recesiones gingivales antero inferiores fueron tratados mediante la técnica del túnel lateralmente cerrado. Se recogieron distintas variables clínicas periodontales, especialmente la profundidad de la recesión para calcular el porcentaje de cobertura radicular de dicha técnica. Por otra parte, se realizó una revisión bibliográfica basada en la siguiente pregunta PICO:P (pacientes con recesiones gingivales unitarias en dientes anteriores mandibulares), I (técnica del túnel lateralmente cerrado con injerto de tejido conectivo),C (técnica de colgajo avance coronal),O (analizando profundidad de sondaje, profundad de recesión, nivel de inserción clínica, ancho de tejido queratinizado, grosor gingival, cobertura radicular mediay cobertura radicular completa). Resultados: en la serie de casos se obtuvo una cobertura radicular media del 96. 67% ± 8.17 %, siendo este resultado estadísticamente significativo. Al igual que en la reducción de la profundidad de recesión (p=0,001), del nivel de inserción clínica (p=0,003) y en la ganancia de anchura de tejido queratinizado (p=0,001) y grosor gingival (p<0,001). No siendo significativo la reducción de la profundidad de sondaje. En cuanto a la revisión sistemática, se comprobó que la profundidad de sondaje fue mayor en la técnica de colgajo de avance coronal,mientras que se obtuvieron mejores ganancias de anchura de tejido queratinizado con la técnica de túnel lateralmente cerrado...(AU)

Objective: To evaluate the clinical efficacy of the laterally closed tunnel technique with connective tissue grafting in single gingival recessions in the antero inferior area, using a series of six cases. Another objective was to carry out a review to compare the efficacy of the laterally closed tunnel technique versus the coronal advancement flap technique with connective tissue graft. Material and methods: Six patients with antero inferior gingival recessions were treated using the laterally closed tunnel technique. Different periodontal clinical variables were collected, especially the depth of recession to calculate the percentage of root coverage of this technique. On the other hand, a literature review was carried out based on the following PICO question: P (patients with single gingival recessions in mandibular anterior teeth), I (laterally closed tunnel technique with connective tissue graft),C (coronal advancement flap technique),O (analysing probing depth, recession depth, clinical attachment level, width of keratinised tissue, gingival thickness,average root coverage and complete root coverage). Results: In the case series a mean root coverage of 96.67% ± 8.17 % was obtained, this result being statistically significant. The same was true for the reduction in recession depth (p=0.001), clinical attachment level (p=0.003) and the gain in keratinised tissue width (p=0.001) and gingival thickness (p<0.001). The reduction in probing depth was not significant. In terms of the systematic review, it was found that probing depth was greater in the coronal advancement flap technique, while better gains in keratinised tissue width were obtained with the laterally closed tunnel technique. Conclusions: The laterally closed tunnel technique...(AU)

Accuracy of zygomatic dental implant placement using computer-aided static and dynamic navigation systems compared with a mixed reality appliance. An in vitro study.

Background: Analyze and compare the accuracy of zygomatic dental implant placement carried out using a static navigation surgery, a dynamic navigation surgery and an augmented reality appliance. Material and Methods: Eighty (80) zygomatic dental implants were randomly assigned to one of four study groups: A: static navigation implant surgery (n = 20) (GI); B: dynamic navigation implant surgery (n = 20) (NI); C: augmented reality appliance implant placement (n = 20) (ARI) and D: free hand technique (n = 20) (FHI). A preoperative cone-beam computed tomography (CBCT) scan of the existing situation was performed to plan the surgical approach for the computer assisted implant surgery study groups. Four zygomatic dental implants were placed in anatomical-based polyurethane models (n = 20) manufactured by stereolithography, and a postoperative CBCT scan was taken. Subsequently, the preoperative planning and postoperative CBCT scans were uploaded to dental implant software to analyze the coronal global, apical global, and angular deviations. Results were analyzed using linear regression models with repeated measures to assess the differences according to the group, according to the position, and the interaction between both variables. If statistically significant differences were detected, 2-to-2 comparisons were made between the groups/positions. Results: The results did not show statistically significant differences between the coronal global deviations of GI (5.54 ± 1.72 mm), NI (5.43 ± 2.13 mm), ARI (5.64 ± 1.11 mm) and FHI (4.75 ± 1.58 mm). However, showed statistically significant differences between the apical global deviations of FHI (3.20 ± 1.45 mm) and NI (4.92 ± 1.89 mm) (p = 0.0078), FHI and GI (5.33 ± 2.14 mm) (p = 0.0005) and FHI and ARI (4.88 ± 1.54 mm) (p = 0.0132). In addition, the results showed also statistically significant differences between the angular deviations of FHI (8.47º ± 4.40º) and NI (7.36º ± 4.12º) (p = 0.0086) and between GI (5.30º ± 2.80º) and ARI (9.60º ± 4.25º) (p = 0.0005). Conclusions: Free-hand technique provides greater accuracy of zygomatic dental implant placement than computer-assisted implant surgical techniques, and zygomatic dental implants placed in the anterior region are more accurate than in the posterior region. However, it is an in vitro study and further clinical studies must be conducted to extrapolate the results to the clinical setting. Key words:Implantology, computer assisted implant surgery, image-guided surgery, augmented reality, navigation surgery, zygomatic implants.

Accuracy of a Computer-Aided Dynamic Navigation System in the Placement of Zygomatic Dental Implants: An In Vitro Study.

The objective of this in vitro study was to evaluate and compare the accuracy of zygomatic dental implant (ZI) placement carried out using a dynamic navigation system. Materials and Methods: Forty (40) ZIs were randomly distributed into one of two study groups: (A) ZI placement via a computer-aided dynamic navigation system (n = 20) (navigation implant (NI)); and (B) ZI placement using a conventional free-hand technique (n = 20) (free-hand implant (FHI)). A cone-beam computed tomography (CBCT) scan of the existing situation was performed preoperatively to plan the surgical approach for the computer-aided study group. Four zygomatic dental implants were placed in anatomically based polyurethane models (n = 10) manufactured by stereolithography, and a postoperative CBCT scan was performed. Subsequently, the preoperative planning and postoperative CBCT scans were added to dental implant software to analyze the coronal entry point, apical end point, and angular deviations. Results were analyzed using the Student's t-test. Results: The results showed statistically significant differences in the apical end-point deviations between FHI and NI (p = 0.0018); however, no statistically significant differences were shown in the coronal entry point (p = 0.2617) or in the angular deviations (p = 0.3132). Furthermore, ZIs placed in the posterior region showed more deviations than the anterior region at the coronal entry point, apical end point, and angular level. Conclusions: The conventional free-hand technique enabled more accurate placement of ZIs than the computer-assisted surgical technique. In addition, placement of ZIs in the anterior region was more accurate than that in the posterior region.

Evaluation of the Effectiveness of Dry Needling in the Treatment of Myogenous Temporomandibular Joint Disorders.

Background and Objectives: The objective of our clinical trial was to determine the effectiveness of the deep dry needling technique (DDN) (neuromuscular deprogramming) as a first step in the treatment of temporomandibular disorders. Methods and Materials: The double-blind randomized clinical trial comprised 36 patients meeting the inclusion criteria who had signed the corresponding informed consent form. The participants were randomly distributed into two groups, the Experimental group (Group E) and the Control group (Group C). Group E received bilateral DDN on the masseter muscle, while Group C received a simulation of the technique (PN). All the participants were evaluated three times: pre-needling, 10 min post-needling, and through a follow-up evaluation after 15 days. These evaluations included, among other tests: pain evaluation using the Visual Analog Scale (VAS) and bilateral muscle palpation with a pressure algometer; evaluation of the opening pattern and range of the mouth, articular sounds and dental occlusion using T-scans; and electromyography, which was used to evaluate the muscle tone of the masseter muscles, in order to control changes in mandibular position. Results: Digital control of occlusion using Tec-Scan (digital occlusion analysis) showed a significant reduction both in the time of posterior disclusion and in the time needed to reach maximum force in an MI position after needling the muscle, which demonstrated that there were variations in the static position and the trajectory of the jaw. The symmetry of the arch while opening and closing the mouth was recovered in a centric relation, with an increase in the opening range of the mouth after the procedure. Conclusions: facial pain is significantly reduced and is accompanied by a notable reduction in muscle activity after needling its trigger points.

Oral health-related quality of life after dental treatment in patients with intellectual disability

BACKGROUND: The influence of dental treatment on oral health-related quality of life (OHRQOL) has rarely been evaluated in patients with intellectual disability (ID) through validated questionnaires. The aim of this study was to estimate the changes on OHRQOL in patients with ID after the implementation of an institutional dental treatment program under general anesthesia using the Franciscan Hospital for Children Oral Health-Related Quality of Life questionnaire (FHCOHRQOL-Q). MATERIAL AND METHODS: A prospective longitudinal study was conducted on 85 patients (mean age=24.85 years) classified according to DSM-V whose parents/caregivers completed the FHC-OHRQOL-Q. We analyzed the changes in the questionnaire's overall score and its dimensions from pre-treatment to 12-months of follow-up, considering effect sizes and minimal important differences estimated by the standard measurement error. The impact of clinical and therapeutic factors was evaluated using univariate and multiple linear regression analysis (p < 0.05). RESULTS: Significant improvement of OHRQOL was found after dental treatment in oral symptoms (p ≤ 0.001), daily life problems (p = 0.018), parent's perceptions (p = 0.013) and FHCOHRQOL-Q's overall score (p = 0.001). OHRQOL changes exhibited an intermediate magnitude (0.38-0.21) as estimated by effect sizes. Changes in oral symptoms showed positive correlation with DMFT index (r = 0.375, p = 0.002), decayed teeth (r = 0.244, p = 0.036), dental extractions (r = 0.424, p < 0.001) and number of treatments (r = 0.255, p = 0.019). The improvement was greater in patients with ≥ 4 decayed teeth (p = 0.049) and undergoing ≥ 2 dental extractions (p = 0.002). Multiple regression analysis demonstrated that dental extractions (p < 0.001) and DMFT index ( p= 0.028) were significantly related to oral symptom improvement. CONCLUSIONS: Dental treatment under general anesthesia showed a positive effect on the overall FHC-OHRQOL-Q score and most of its dimensions. At 12-months of follow-up, the improvement of oral symptoms was significantly associated with DMFT index, decayed teeth, dental extractions and number of treatments. In our clinical setting, the implementation of a dental treatment program enhanced the OHRQOL of patients with ID

No disponible

Influence of a preventive program on the oral health-related quality of life (OHRQoL) of European pregnant women: a cohort study.

The aim of this study was to compare the impact of oral health on quality of life of a group of pregnant women enrolled in a program of oral health with respect to a control group of non-pregnant women. A cross-sectional study involving a sociodental indicator OHIP-14 and a dental examination was completed to assess pregnant women's knowledge of oral health, hygienic habits, periodontal and caries index. Data were collected from 113 pregnant women and 113 non-pregnant women. Sociodemographic data for both groups were homogeneous. Pregnant women have better values of general and oral health, even though they have not perceived need for dental treatment, compared with control group. A worse periodontal health was observed for the control group. Our results showed that quality of life in pregnant women has been influenced with a statistical significance (p < 0.05) by the variables age, unemployment, level of education, immigration, frequency of brushing, type of dental practice, self-reported general and oral health and perceived treatment needs. The oral quality of life of pregnant women seems to be positively influenced by the incorporation of preventive oral programs during pregnancy.

The Effect of Femtosecond Laser Treatment on the Effectiveness of Resin-Zirconia Adhesive: An In Vitro Study.

Introduction: When aesthetics is compromised, dental ceramics are excellent materials for dental restorations; owing to their optical properties and biocompatibility, zirconia ceramics are particularly interesting. Self-adhesive resin cements are the most suitable for bonding to zirconia ceramics, but traditional adhesive chemistry is ineffective and surface treatments are required to improve the adhesive bonding between resin and zirconia. The aim of this study was to evaluate the effect of femtosecond laser treatment on the shear bond strength (SBS) of self-adhesive resin cement on zirconia surfaces and to contrast it with other different surface conditioning methods. Methods: Sixty square-shaped zirconia samples were divided randomly into four groups (n = 15) according to their surface conditioning method: the NT group - no surface treatment; the APA25 group - airborne abrasion with 25 µm alumina particles; the TSC group - tribochemical silica coating, and the FS group - femtosecond laser irradiation (800 nm, 4 mJ, 40 fs/pulse, 1 kHz). Self-adhesive resin cements were bonded at the centre of samples, and after 72 hours, they were tested for SBS with a universal testing machine at a crosshead speed of 0.5 mm/min, until fracture. Five zirconia surfaces for each group were subjected to a surface morphology analysis by scanning electron microscopy (SEM). The failure modes were noted and a third of the specimens were prepared to morphological analysis. Results: The NT group showed lower SBS values than the other groups. Femtosecond laser treatment demonstrated higher values than the control and APA25 groups and similar values to those of the TSC group. In the APA25 group, the surface conditioning method had values close to those of the TSC group, but lower than those obtained with femtosecond laser treatment. Conclusion: The treatment of zirconia with femtosecond laser irradiation created a consistent and profound surface roughness, improving the adhesive effectiveness of the zirconia-resin interface.

State anxiety and depression as factors modulating and influencing postoperative pain in dental implant surgery. A prospective clinical survey

OBJECTIVES: To determine whether preoperative state anxiety and depression modulate or influence objective and subjective postoperative pain following dental implant insertion. Study DESIGN: Prospective, clinical study with 7-day follow-up of a sample of 105 subjects who preoperatively completed the state anxiety questionnaire (STAI-E) and Beck Depression Inventory (BDI) and postoperatively, at 2 and 7 days, recorded objective pain with the Semmes-Weinstein mechanical esthesiometer (SW test) and subjective pain with the Visual Analog Scale (VAS).RESULTS: 85.6% and 81.5% of patients, respectively, recorded no signs of state anxiety or depression. The correlation between anxiety and depression for both maxillary bones was the lower (P=0.02). The correlation between subjective and objective pain at 2 and 7 days, and the anatomic regions intervened, was statistically significant in the mandible at day (P<0.01), and highly significant (P<0.001) for the other variables. The correlation between state anxiety and objective pain at day 7 was nearly statistically significant (P=0.07). CONCLUSIONS: The correlation between state anxiety and depression, and objective and subjective pain at day 7 was not statistically significant. A strong correlation was found between objective and subjective pain in the immediate postoperative period

State anxiety and depression as factors modulating and influencing postoperative pain in dental implant surgery. A prospective clinical survey.

OBJECTIVES: To determine whether preoperative state anxiety and depression modulate or influence objective and subjective postoperative pain following dental implant insertion. STUDY DESIGN: Prospective, clinical study with 7-day follow-up of a sample of 105 subjects who preoperatively completed the state anxiety questionnaire (STAI-E) and Beck Depression Inventory (BDI) and postoperatively, at 2 and 7 days, recorded objective pain with the Semmes-Weinstein mechanical esthesiometer (SW test) and subjective pain with the Visual Analog Scale (VAS). RESULTS: 85.6% and 81.5% of patients, respectively, recorded no signs of state anxiety or depression. The correlation between anxiety and depression for both maxillary bones was the lower (P=0.02). The correlation between subjective and objective pain at 2 and 7 days, and the anatomic regions intervened, was statistically significant in the mandible at day 7 (P<0.01), and highly significant (P<0.001) for the other variables. The correlation between state anxiety and objective pain at day 7 was nearly statistically significant (P=0.07). CONCLUSIONS: The correlation between state anxiety and depression, and objective and subjective pain at day 7 was not statistically significant. A strong correlation was found between objective and subjective pain in the immediate postoperative period.

Fístula cutánea de origen Dental / Cutaneous fistula of dental origin

Muchas veces las fístulas cutáneas orofaciales son diagnosticadas como lesiones dermatológicas sin tener en cuenta su relación con una patología dental, prescribiéndose tratamientos erróneos e innecesarios para el paciente, que no ve resuelto su problema, y retrasando el tratamiento endodóntico que eliminará la infección dental con el consiguiente cierre y cicatrización de la fístula extraoral. Es por tanto necesario, siempre que aparezca este tipo de lesiones, buscar una causa dental y hacer un diagnóstico temprano por parte de los especialistas que están tratando al paciente para remitirlo al odontoestomatólogo y que éste realice el tratamiento de conductos radiculares (AU)

Orofacial cutaneous fistulas are often misdiagnosed as dermatological lesions without taking into account their relationship with dental disease. This leads to mistaken and unnecessary treatment for the patient., whose problem remains unresolved, and delays the endodontic therapy which will eliminate the dental infection and subsequent closure and scarring of the extraoral fistula. Accordingly, whenever this type of fistula occurs the physician should look for a dental cause and thus make an early diagnosis and refer the patient to his/her dentist so that treatment of the pulp canals can be performed (AU)

Validation the Oral Health Impact Profile (OHIP-14sp) for adults in Spain

Objectives:The oral health-related quality of life indicators are increasingly used to measure the impact of oral conditions on qualityof life to complement clinical data in cross-sectional and longitudinal studies. One of the most internationally spread indicatorsis the Oral Health Impact Profile (OHIP-14), but it has still never been applied in Spain. The aim of this study wasto validate the OHIP-14 for use among adults in Spain.Study design:A cross-sectional study was performed in Granada (Spain). A consecutive sample (n=270) of the Regional Government staffvisiting the Employment Risk Prevention Centre for a routine medical check-up participated in this study. All participantsself-completed the piloted OHIP-14sp and were examined according to World Health Organization methodology for caries,periodontal disease and prosthesis. Reliability analyses and validity tests were carried out to evaluate the psychometricproperties of the OHIP-14sp by using two different methods of total scoring (i.e. the Additive and the Simple Count).Results:The reliability coefficient (Cronbach´s alpha) of the OHIP-14sp was above the recommended 0.7 threshold and consideredexcellent (alpha: 0.89). Some subjective factors (perceived dental treatment need, complaints about mouth and self-ratedoral satisfaction) were strongly associated with both total scoring methods of the OHIP-14sp, supporting the criterion,construct and convergent validity. Moreover the impact levels were mainly influenced by caries data, e.g., number of teethrequiring extraction (r = 0.21; p<0.01) and number of decayed visible teeth (between premolars) (r = 0.17; p<0.01). (..) (AU)

Validation the Oral Health Impact Profile (OHIP-14sp) for adults in Spain.

OBJECTIVES: The oral health-related quality of life indicators are increasingly used to measure the impact of oral conditions on quality of life to complement clinical data in cross-sectional and longitudinal studies. One of the most internationally spread indicators is the Oral Health Impact Profile (OHIP-14), but it has still never been applied in Spain. The aim of this study was to validate the OHIP-14 for use among adults in Spain. STUDY DESIGN: A cross-sectional study was performed in Granada (Spain). A consecutive sample (n=270) of the Regional Government staff visiting the Employment Risk Prevention Centre for a routine medical check-up participated in this study. All participants self-completed the piloted OHIP-14sp and were examined according to World Health Organization methodology for caries, periodontal disease and prosthesis. Reliability analyses and validity tests were carried out to evaluate the psychometric properties of the OHIP-14sp by using two different methods of total scoring (i.e. the Additive and the Simple Count). RESULTS: The reliability coefficient (Cronbach's alpha) of the OHIP-14sp was above the recommended 0.7 threshold and considered excellent (alpha: 0.89). Some subjective factors (perceived dental treatment need, complaints about mouth and self-rated oral satisfaction) were strongly associated with both total scoring methods of the OHIP-14sp, supporting the criterion, construct and convergent validity. Moreover the impact levels were mainly influenced by caries data, e.g., number of teeth requiring extraction (r = 0.21; p<0.01) and number of decayed visible teeth (between premolars) (r = 0.17; p<0.01). The prevalence of impacts was 80.7% using the occasional or more frequently threshold. The most prevalently affected OHIP domains were "psychological discomfort" (53.7%), "functional limitation" (51.1%) and "physical pain" (42.2%). CONCLUSIONS: The OHIP-14sp is a precise, valid and reliable instrument for assessing oral health-related quality of life among adult population in Spain.