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Objective @#To evaluate the effect of anatomical healing abutments for mandibular first molars on the morphological changes of gingival soft tissue after implant restoration, as well as on peri-implant gingival molding, food ingrowth and patient satisfaction, to provide a basis for clinical selection. @*Methods @# Twenty-six patients who received implant restoration for a single missing mandibular first molar between September 2020 and September 2021 at the Oral Implant Center of Changsha Stomatological Hospital were randomly divided into a control group (13 cases with 14 implants) and a trial group (13 cases with 14 implants), of which 12 were male and 14 were female; the trial group had anatomical healing abutments applied for 4 weeks and then underwent crown restoration, while the control group finished five time points (before the second stage surgery, 4 weeks after the second stage surgery, immediately after the crown restoration, 4 weeks after the crown restoration, and 12 weeks after the crown restoration). A 3Shape intraoral scanner was used to scan the jaw before and 4 weeks after the second stage surgery to quantify the soft tissue changes and compare the effect of the healing abutment on gingival molding between the two groups. The incidence of food impaction was recorded and compared between the two groups at 4 weeks and 12 weeks after crown restoration. Patient satisfaction was recorded and compared between the two groups immediately after crown restoration, 4 weeks after crown restoration and 12 weeks after crown restoration@*Results @# Four weeks after implant surgery, it was observed that the gingival proximal and distal gingival papillae increased on the coronal side in the test group compared to the control group, 0.50 (0.26, 0.72) mm in the near-medium test group and 0.27 (0.24, 0.38) mm in the control group, with a statistically significant difference (P = 0.029), and 0.48 (0.26, 0.62) mm in the far-medium test group and 0.23 (0.13, 0.39) mm in the control group, with a statistically significant difference (P = 0.004). There was no statistically significant difference (P>0.05) in the buccolingual to gingival margin apex to coronal molding or in the buccolingual to lingual soft tissue at 0, 1, or 2 mm of the root of the middle 1/3 apex of the buccal and lingual gingival margins between the two groups. Compared to the control group, there was no statistically significant difference in the incidence of food impaction observed 4 weeks and 12 weeks after crown restoration in the test group (P>0.05). The satisfaction scores were higher in the trial group than in the control group immediately, 4 weeks, and 12 weeks after crown restoration, and the difference between the groups was statistically significant (P < 0.05). @*Conclusion @# The anatomical healing abutment for the implant mandibular first molar was superior to the finished healing abutment in terms of soft tissue contouring with an increase in the coronal aspect of the proximal and distal gingival papillae, resulting in high patient satisfaction.
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Objective@# To explore the clinical effect of a guided resin cementation technique on vertical food impaction symptoms and to provide a new method for the treatment of vertical food impaction. @* Methods @#Treatment of 76 patients with vertical food impaction with guided resin cementation was performed. A specially fabricated contact shaping wire was used to aid the shaping of the contact. Cementation was applied under a rubber dam with the total-etch technique with flowable composite resin. Patient subjective perception was recorded after treatment (i.e., “totally relieved”=3, “significantly improved”=2, “slightly improved”=1 and “no change”=0). Follow-up visits lasted for one year. Scores of 1 to 3 were recorded as effective. The efficiency rates at different times were calculated. @*Results@#Patient subjective perceptions scored 2.47, 2.21, 1.79, 1.30 and 0.97 on the day immediately after and 1, 3, 6, and 12 months after treatment, respectively. There were significant differences among scores at each time point (P<0.01). The Efficacy rate reached 91.78% immediately after treatment and was sustained above 50% within half a year. Management of resin debonding or fracture successfully relieved the symptoms again.@*Conclusion@#The guided resin cementation technique relieves vertical food impaction symptoms immediately, and the effect of the guided resin cementation technique is maintained for a short period of time. Management of resin debonding or fracture helps consolidate treatment outcomes.
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BACKGROUND: Implant denture is a kind of dental restoration with excellent retention, support and stability. However, the phenomenon of dental fillings after implantation is a common phenomenon that troubles the majority of patients with dental defects. OBJECTIVE: The finite element analysis method was used to analyze the food impaction after planting denture by biomechanical numerical simulation, and find the quantitative relationship between the food impaction and relative width, relative height, relative angle of the denture. METHODS: To study fully relative teeth under the conditions of different widths, heights and angles influence on food embedded plug, we designed different width groups of the upper structure of the denture (5 subgroups: 5.6, 5.7, 5.8, 5.9, 6.0 mm), different height groups of the upper structure of the denture (5 subgroups: 6.6, 6.8, 7.0, 7.2, 7.4 mm), different planting angle groups of the denture (5 subgroups: 92°, 91°, 90°, 89°, 88°), different width groups of natural crowns (5 subgroups: 5.6,5.7, 5.8, 5.9, 6.0 mm), different height groups of natural crowns (5 subgroups: 6.6, 6.8, 7.0, 7.2, 7.4 mm), and different natural tooth growth angle groups (5 subgroups: 92°, 91°,90°, 89°, 88°) as a 4-teeth partial denture model. Each subgroup was designed by changing the relative position of the third dental component, with the same remaining conditions. The numerical simulation of food impaction was carried out for all dentition models, and the deformation of the teeth was analyzed. The tooth gap width curves were compared before and after stress between each group. RESULTS AND CONCLUSION: (1) After force, the total horizontal displacement of the denture was slowly reduced with the increase of the width of the upper part of the denture. When the width of the upper structure was between 5.9 and 6.0 mm, the interdental space of the natural tooth was rapidly reduced after the deformation of the tooth. The effect of food impaction was closer to the food impaction condition in the case of natural teeth. (2) When the height of the upper structure of the denture was lower than that of the adjacent teeth, with the increase of the height of the upper structure of the denture, the gap between the teeth increased first and then decreased. When the denture was lower than the adjacent tooth and the height was between 6.8 and 7.0 mm, the tooth space decreased rapidly after the force was applied. (3) The total horizontal displacement decreased slowly with increasing planting angle. (4) The results show that to reduce food impaction, the interdental distance of the implant denture and adjacent teeth should be less than 0.05 mm. The height of the implant denture should be less about 0.2 mm than adjacent teeth, and the planting angle should be about 90°.
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Food impaction with tight proximal contacts, also known as kinetic food impaction and food impaction without anatomical structure destruction, is mainly caused by a transient separation in contacts area during mastication. It′s an intractable food impaction with high morbidity and low cure rate. There are two kinds of pathogenesis accepted: the shifting of anterior teeth incongruous with adjacent teeth or lack of anterior shifting; lack of food escape grooves. The preferred treatment is occlusal adjustment, but it′s difficult to determine the area and extent of selective grinding, to quantify the occlusal adjustment, or to predict the prognosis. This review summarized the pathogenesis and treatment modality for kinetic food impaction in order to provide evidence for future researches and clinical application.
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OBJECTIVE@#This study aimed to determine the clinical effectiveness of double-shaft classification and sequential diagnosis and treatment of food impaction.@*METHODS@#A total of 227 patients with food impactionwere subjected to double-shaft classification and subsequently treated by sequential diagnosis and treatment method. Treatment effectiveness was evaluated according to the subjective feelings of patientsat five time points (immediately after treatment and at 1, 3, 6, and 12 months after treatment).@*RESULTS@#The average scores of patient's subjective perception were 2.00, 1.93, 1.59, 1.20, and 0.98 immediately and at 1, 3, 6, and 12 months after treatment, with treatment-efficiency values of 87.17%, 81.70%, 73.21%, 55.80%, and 44.59%, respectively. There were differences in scores of patient's subjective perception at each time point (P< 0.05).@*CONCLUSIONS@#Double-shaft classification and sequential diagnosis and treatment can effectively guide the treatment of food impaction.
Subject(s)
Humans , Food , Treatment OutcomeABSTRACT
<p><b>OBJECTIVE</b>To discuss the cause of food impaction after fixed denture restoration and to analyze the therapeutic effect of gap expansion and resin repair.</p><p><b>METHODS</b>A total of 100 patients who suffered from food impaction after they received fixed partial denture were chosen. The cause of food impaction was analyzed. Treatment methods were applied on the basis of different causes. Gap expansion and resin repair were implemented to remove food impaction caused by the poor contact of the denture with healthy adjacent teeth.</p><p><b>RESULTS</b>The poor contact between fixed denture and healthy adjacent teeth was the major cause of food impaction (70%) . The effective rate of treatment among patients who received fixed partial denture but suffered from food impaction after 3 years was 100%.</p><p><b>CONCLUSIONS</b>The proposed method can be applied to treat food impaction caused by the poor contact of denture with healthy adjacent teeth.</p>
Subject(s)
Humans , Denture Design , Denture, Partial, Fixed, Resin-Bonded , FoodABSTRACT
Objective:To evaluate the clinical effects of short fiber ribbon combined with resin bonding technology for the treatment of food impaction between posterior teeth. Methods:98 cases of vertical food impaction between posterior teeth( total of 135 vertical food impaction units) were included. 73 units were treated by short quartz fiber ribbon combined with resin bonding technology( SQFRB) and 63 by resin bonding(RB). 12, 24 and 36 months after restoration, clinical effects were evaluated referring to the Modified United States Public Health Service (USPHS) Criteria, data were statistically analyzed. Results:12, 24 and 36 months after treatment the cure rate of SQFRB was 97. 3%, 97. 3% and 95. 9%, inefficacy rate was 0, 0 and 0;the cure rate of RB was 85. 5%, 82. 2% and 82. 2%, the inefficacy rate was 4. 8%, 11. 3% and 12. 9%, respectively(between groups, P<0. 05). Conclusion:Minimally inva-sive restorations using short fiber ribbon combined with resin bonding technology is effective in the treatment of vertical food impaction between posterior teeth.
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PURPOSE: The purpose of this study was to investigate the food impaction between implant prostheses and adjacent natural teeth. MATERIALS AND METHODS: For this study, 51 patients with food impaction were selected and investigated mobility, tightness of contact area, gingival index, plaque index, attachment loss, alveolar bone level, proximal caries, marginal ridge distance and occlusal relationships. RESULTS: Food impaction was found in the upper teeth (60.7%) more than the lower teeth (39.2%). Food impaction was occurred on mesial side of implant prostheses (86.2%) more than distal side (13.7%). Food impaction was mostly found in loose or open contact area (94.2%). Food impaction was frequent on stepped relationship between implant and adjacent teeth. CONCLUSION: Treatment plan should include proper adjacent and antagonistic occlusal plane and occlusal surface, to prevent food impaction, and the plan should include less adjacent tooth mobility with proper tightness between implant prostheses and adjacent teeth.
Subject(s)
Humans , Dental Occlusion , Periodontal Index , Prostheses and Implants , Tooth Mobility , ToothABSTRACT
Esofagite eosinofílica é uma doença inflamatória primária crônica na qual ocorre infiltração de eosinófilos na mucosa esofágica. Tem patogênese indefinida, porém há importante associação com doenças alérgicas e história familiar. Os sintomas principais são disfagia e impactação de bolo alimentar, mas pode haver também pirose. O diagnóstico é estabelecido através de endoscopia e análise histológica da mucosa esofágica. O tratamento mais eficaz tem sido a corticoterapia tópica, havendo boa resposta clínica e histológica.