Shiro KINOSHITA’s research while affiliated with Tokyo Dental College and other places

... In Western countries, the use of toothbrushes and interdental instruments in combination has become widespread, and this has a highly preventive effect against dental caries and periodontal disease 2,6,8) . Cleaning using a toothbrush alone has been reported to remove only approximately 65% of plaque from the entire tooth surface 11) . Toothbrush bristles are unlikely to reach interdental regions. ...

Reference:

Plaque-removing Effects of Interdental Instruments in Molar Region

... Thus, 20,000-cycle performed in this study presented two years of tooth brushing. To achieve challenging conditions for the toothbrush abrasion test, Settima was selected because the toothpaste has a great relative dentin abrasivity (RDA) value and large abrasion compared to other toothpaste 29,30) . Thus, it should be noted that toothbrush abrasion tests with other kinds of toothpaste might show different results from those in this study. ...

Reference:

Influence of toothbrush abrasion on the surface characteristics of CAD/CAM composite resin blocks with shade gradations

... Toothbrush bristles are unlikely to reach interdental regions. This means that plaque is often left unremoved, which often Original Article doi: 10.2209/tdcpublication. results in the development of gingival inflammation in these regions. Concomitantly using an interdental brush with a toothbrush, however, increases plaque removal 1.5-fold 11) . ...

Reference:

Plaque-removing Effects of Interdental Instruments in Molar Region

... Only the characteristics of keratinized gingiva width (KGW) / attached gingiva width (AGW) around natural adjacent teeth and the KMW around future implant sites have been discussed. Regarding the natural teeth, the buccal KGW/AGW is higher at the maxillary teeth than at the opposite mandibular teeth [21][22][23]. Lang and Löe [22] also reported that the maxillary facial KGW is approximately 1.0 mm wider than that of the mandible. Factors including the position of the tooth, high frenum and muscle attachments, gingival thickness (GT), gingival phenotype (GP), and gingival recession are associated with the AGW around natural teeth [24][25][26][27][28]. ...

Reference:

The keratinized mucosa width at partially edentulous molar sites and its associated factors: a pilot study

... Some of the natural products, particularly antimicrobial peptides, have received increased attention as promising antimicrobial agents [9]. CL (14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25), a dodecapeptide, that is a partial region near N-terminus of cyanate lyase (CL, EC 4.3.99.1, GenBank ID: Os10g0471300) from rice (Oryza sativa L. spp. japonica), is a novel cationic α helical antimicrobial peptide with three arginine and two lysine residues [10]. ...

Reference:

Effect of a mouthrinse containing rice peptide CL(14-25) on early dental plaque regrowth: A randomized crossover pilot study Oral Health

... For plate culture, the bacteria tested in this study were grown on plates containing tryptic soy agar (40 g·L −1 ; Becton, Dickinson and Company, Franklin Lakes, NJ) supplemented with 10% defibrinated horse blood (Nippon Bio-Test Laboratories Inc., Tokyo, Japan), hemin (5 g·L −1 ; Sigma-Aldrich Corp., St. Louis, MO), and menadione (0.5 g·L −1 ; Sigma-Aldrich Corp.) [18]. Preculture was performed in an anaerobic chamber (N 2 : 80%, H 2 : 10%, CO 2 : 10%) at 37˚C. ...

Reference:

Potential Antimicrobial Effects of Gatifloxacin on Periodontopathic Bacteria in Vitro

... 48 Another study by Noguchi et al., suggested that the film sheet is unaffected by intraoral humidity and temperature. 49 Suzuki et al., found no statistical difference in color forming between the sheets compressed for 1 second or 5 seconds. But when compressed for 10 seconds, the film sheets showed higher color formation than did the sheets that were compressed for 1 second. ...

Reference:

Accuracy, Reliability and Clinical Implications of Static Compared to Quantifiable Occlusal Indicators

... There is a need for patients to pay attention to their own plaque control in order to maintain good periodontal conditions. Clinically favourable results have been reported in cases where the PCR score was less than 20-25% during the SPT period 9) . During SPT, it is important to check brushing status and maintain good plaque control. ...

Reference:

Periodontal Regenerative Therapy with Recombinant Human Fibroblast Growth Factor (rhFGF) -2 for Stage III Grade C Periodontitis: A Case Report with 6-month Follow-up

... The bone level was then calculated by dividing the bony supporting height by root length. The RPSI for each tooth was calculated based on the values in Tables 1 and 2 derived from Osada et al [9]. The RPSI values for abutments #14, #12, #24 and #25 were 3.38, 0.71, 3.33 and 2.88, respectively (Table 3). ...

Reference:

Method of Retention Control for Compromised Periodontal Bone Support Abutment of Conical Crown Retained Denture

... According to Oda et al. [21], the average root length of all teeth, excluding the distal surface of the second molars, is approximately 14 mm. Considering the anatomically normal connective tissue attachment pattern, a BCL of 3.0 mm may result in approximately 15% bone resorption; more than 15% bone loss would not present incidentally. ...

Reference:

The Potential of a Saliva Test for Screening of Alveolar Bone Resorption