ABSTRACT
Objective: To evaluate the clinical efficacy and safety profile of a novel-designed isosceles-configured (SUN Teeth™) toothbrush in comparison to a standard reference toothbrush with end-rounded bristles (approved by the American Dental Association [ADA]). Methods: The sample size was determined using the G-Power-software, version 3.1.2 and, accordingly, 104 subjects (ages 19 years to 25 years) were recruited and randomized into either the test group (n = 54) or the control group (n = 50). Prior to study commencement, scaling was performed followed by abstinence from oral hygiene for 24 hours. Baseline pre-brushing gingivitis scores (Lobene) and plaque scores (Turesky modification of Quigley Hein) were recorded. Brushing was performed for 3 minutes and post-brushing scores were recorded on days 1, 14, and 28 without refraining from regular brushing. Data were analysed with Statistical Package for Social Sciences (IBM-SPSS, v.25.0). Results: Post-brushing plaque scores showed significant reduction in both groups at all time intervals. However, no significant differences between the test and control brush groups were achieved at any time points. Conclusion: The isosceles-configured SUN TeethTMtoothbrush is equivalent in plaque removal to the conventional flat-bristled ADA reference brush.
Objectif: Évaluer l'efficacité clinique et le profil de sécurité d'une brosse à dents à conception novatrice d'une configuration isocèle (SUN TeethMD) en comparaison à une brosse à dents à référence standard dotée de soies aux pointes arrondies (approuvée par l'Association dentaire américaine [ADA]). Méthodologie: La taille de l'échantillon a été établie à l'aide du logiciel G-Power, version 3.1.2, et 104 sujets (âgés de 19 à 25 ans) ont été recrutés et randomisés dans un groupe d'essai (n = 54) ou un groupe témoin (n = 50). Avant le début de l'étude, un détartrage a été effectué, suivi par l'abstinence de l'hygiène buccodentaire pendant 24 heures. Des cotes de référence de gingivite prébrossage (Lobene) et des cotes de plaque (modification Turesky de Quigley Hein) ont été consignées. Le brossage était effectué pendant 3 minutes et les cotes après-brossage étaient consignées aux jours 1, 14 et 28 sans éviter le brossage régulier. Les données ont été analysées avec l'Ensemble des programmes statistiques relatif aux sciences sociales (IBM-SPSS, v.25.0). Résultats: Les cotes de plaque après-brossage ont été significativement réduites dans chaque groupe à tous les intervalles de temps. Cependant, aucune différence significative n'a été réalisée en aucun temps entre les groupes de brossage d'essai et témoin. Conclusion: La brosse à dents SUN TeethMDà configuration isocèle est équivalente en matière d'enlèvement de la plaque à la brosse de référence conventionnelle à soies plates de l'ADA.
Subject(s)
Dental Plaque , Adult , Dental Plaque/prevention & control , Dental Plaque Index , Equipment Design , Humans , Periodontal Index , Single-Blind Method , Toothbrushing , Young AdultABSTRACT
PURPOSE: A stable oral mucosa is crucial for long-term survival and biofunctionality of implants. Most of this evidence is derived from clinical and animal studies based solely on implant-supported prosthesis. Much less is known about the dimensions and relationships of this soft tissue complex investing tooth-implant-supported bridgework (TISB). The aim here was to obtain experimental evidence on the dimensional characteristics of oral mucosa around TISB with two different abutment designs. METHODS: Sixteen 3-unit TISB were constructed bilaterally in the mandible of eight adult Macaca fascicularis. An implant system with a standard progressive thread design was the bone-anchoring implant in the second mandibular molar region while the second mandibular premolar served as the natural tooth abutment. Eight implants were connected with the tapered abutment, the remaining with butt-joint abutment, in a split-mouth design. These were allowed to functional load for 6 months before sacrification for histomorphometry. Six soft tissue indices were scored: coronal gingival mucosa-to-implant top distance (DIM); sulcus depth (SD); junctional epithelium (JE); connective tissue contact (CTC); implant top to first bone-to-implant contact distance (DIB); and biologic width (BW=SD+JE+CTC); corresponding parameters in the natural tooth abutment were also measured. RESULTS: Mucosal dimensions in tapered implants (*BW=3.33±0.43; SD=1.03±0.24; JE=1.08±0.13; CTC=1.22±0.23 mm) were comparable with those of natural tooth abutments (BW=3.04±0.18; SD=0.93±0.1; JE=0.78±0.1; Attachment=1.33±0.09 mm), but differed from butt-joint implants (*BW=4.88±1.24; SD=1.47±0.38; JE=1.49±0.4; CTC=1.92±0.93 mm) (*P<0.05). CONCLUSIONS: Results suggested that soft tissue dimensions around TISB are influenced by the implant-abutment interface and abutment material used. Mucosa investing tapered abutment tends to recapitulate soft tissue physiologic dimensions of natural tooth.
