JP4141048B2 - Saliva test tool - Google Patents

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JP4141048B2
JP4141048B2 JP14353799A JP14353799A JP4141048B2 JP 4141048 B2 JP4141048 B2 JP 4141048B2 JP 14353799 A JP14353799 A JP 14353799A JP 14353799 A JP14353799 A JP 14353799A JP 4141048 B2 JP4141048 B2 JP 4141048B2
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saliva
support
test
penetration
viscosity
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JP2000329763A (en
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正夫 石川
文彦 常田
耕司 渋谷
保明 柿木
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Lion Corp
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Lion Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、口腔疾患の予防および薬剤治療時の唾液分泌系に対する影響度の確認等のために、子供から高齢者に至る広範囲の被験者の唾液を簡易に、かつ安価に検査することができる唾液検査用具に関する。
【0002】
【従来の技術】
近年、高齢化社会を迎え、口腔内の加齢によるトラブルとして、根面齲蝕、2次齲蝕、歯周病、口臭、口内炎、カンジダ症など様々な口腔疾患の増加が問題となっている。
【0003】
これらの口腔疾患の原因として、加齢や、高血圧症、さらに更年期障害等で服用する薬剤の中に、唾液分泌量を減少させ、口腔乾燥症(ドライマウス)を誘発するものがあり、唾液分泌量の減少により、これらの疾患が誘発されることが示唆されている。
また、口腔乾燥症は、唾液の分泌量低下以外に、唾液物性の変化にも大きく関わると考えられ、今後、その予防および薬剤治療時の唾液分泌系に対する影響確認のために、分泌量や物性を簡便かつ安価に検査できる方法が望まれている。
【0004】
従来において、齲蝕、歯周病、口臭などのリスクを唾液を用いて簡便に検査紙等で検査する方法としては、例えば、下記▲1▼〜▲6▼の各種方法などが開発されている。
▲1▼ 唾液からの情報として、pH、緩衝能、潜血、グルコースクリアランス等を測定することにより、口腔内環境状態を把握する試験紙〔商品名「サリバスター」昭和薬品化工社製)。
▲2▼ 唾液中の齲蝕原性菌数を測定する齲蝕活動試験紙となるシート状のRD(レサズリンディスク)テスト「昭和」(昭和薬品化工社製)。
▲3▼ 唾液中の乳酸菌、ストレプトコッカス・ミュータンスを測定するデントカルト(エイコー社製)。
▲4▼ 喫煙により唾液中に含有されるロダンを試験紙に含ませた塩化第二鉄との反応により測定する、たばこ試験紙(東洋濾紙社製)。
▲5▼ 唾液中のpHを測定するイオンバランステスター(サンスター社製)。
▲6▼ 唾液中の特定成分や細菌代謝産生物質量を発色させることにより、口腔内の状況をみる口臭チェッカー(本願出願人の出願した特公平4−23218号公報、特公平5−11858号公報等)。
【0005】
また、涙液、涙道の検査法として、シルマー(Schirmer)試験紙〔眼科Mook No.3(1978)大鳥利文著、「涙液、涙道検査」〕による測定、並びに、涙液量検査用綿糸として少量の涙液でも検査可能なフェノールレッド糸〔商品名「ゾーンクィック」、昭和薬品化工社製〕や、涙液減少症、涙点閉鎖症を把握するため、シルマー試験紙の測定のバラツキを改善するメモリ付きシルマー試験紙〔眼科32(697-703)1990年山口達夫著〕などが知られている。
【0006】
しかしながら、上記▲1▼〜▲6▼の各種の試験紙など及び上記涙液、涙道の検査法に用いられるシルマー試験紙などは、唾液そのものの量や物性として、浸透度、浸透速度、粘性等を簡易に検査する検査治具を開示するものではない。
また、口腔内を見る客観的指標としては、一定時間に分泌された唾液容量または重量を測定する方法が一般であるが、医療現場等では少ない容量、重量となる唾液を正確に計ることは難しく、新たな測定装置等の必要性が生じているのが現状である。
【0007】
【発明が解決しようとする課題】
本発明は、上記従来の課題及び現状等に鑑み、これを解消しようとするものであり、口腔内の唾液の分泌量や、一定時間に於ける唾液の浸透距離となる浸透度、ある時間における浸透度に更に一定時間延長後の浸透距離により算出される浸透速度、または、粘性を所定部位に直接装着することにより判定することができる唾液検査用具を提供することを目的とし、更に、新たな容器に唾液を採取する必要が無く、どこにいても、子供から高齢者に至る広範囲の被験者の唾液を簡易かつ安価に検査することができ、しかも、客観的な口腔内の情報を提供することにより、自己チェックに、また、集団検診に、更に歯科医療分野の診断に貢献することができる唾液検査用具を提供することを目的とする。
【0008】
【課題を解決するための手段】
本発明者らは、上記従来の課題などについて鋭意検討した結果、唾液の各因子等を簡易に測定できる方法として、分泌量と物性を同時に、簡便かつ安価に検査する方法として、紙、繊維、吸着剤等の特定の吸水性支持体を主体とした検査用具を用いることにより、一定時間後の唾液の浸透距離を測定するだけで、唾液量と物性(浸透度、浸透速度または粘性)を簡便に予測でき、口腔疾患、口腔乾燥症等に対するリスクの指標に応用できることを見い出すことにより、本発明を完成するに至ったのである。
すなわち、本発明の唾液検査用具は、次の(1)〜(5)に存する。
(1) 唾液の量、粘性、口腔粘膜の乾燥度及び湿潤度を判定することができる口腔内に挿入する唾液検査用具であって、該唾液検査用具は唾液の浸透速度が5〜80mm/30secの支持体を備えると共に、該支持体の下部を唾液採取部位としてなることを特徴とする唾液検査用具。
(2) 支持体の先端から3〜12mmには折曲部が形成されて該折曲部の下部を唾液採取部位としてなる上記(1)記載の唾液検査用具。
(3) 支持体の唾液採取部位以外の支持体外面に濡れ防止手段を施してなる上記(1)又は(2)記載の唾液検査用具。
(4) 支持体に、目盛及び/又は数値を示す表示部が形成されている上記(1)〜(3)の何れか一つに記載の唾液検査用具。
(5) 支持体中に、pH指示薬及び/又は着色料を微量加えてなる上記(1)〜(4)の何れか一つに記載の唾液検査用具。
【0009】
【発明の実施の形態】
以下に、本発明の実施の形態を図面を参照しながら詳しく説明する。
図1(a)及び(b)は、本発明の唾液検査用具の実施形態の一例を示すものであり、(c)又は(d)は、それぞれ実施形態の他例を示すものである。
本実施形態の唾液検査用具10は、唾液の量、粘性、口腔粘膜の乾燥度及び湿潤度を判定することができるものであって、該唾液検査用具10は唾液の浸透速度が5〜80mm/30sec、好ましくは、8〜64mm/30secの支持体の支持体11を備えている。
【0010】
本実施形態の唾液検査用具10に用いる支持体11の原料としては、例えば、紙、濾紙、吸い取り紙、紙タオル、加工紙、脱脂綿、石英ウール、ガラスウール、デンプン、デキストラン、ムタン、レバン、セルロースパウダー、ウール、絹、綿、麻などが挙げられ、また、アクリル、ポリエステル、レーヨン、ナイロン、ニトロセルロース、酢酸セルロース、再生セルロース、ガラス繊維等の合成繊維又は植物繊維の支持体、または、シリカゲル、活性白土、ケイソウ土、炭素粉末、活性アルミナ等の多孔性吸着剤からなる支持体が挙げられ、これらは、そのまま〔図1(a)及び(b)〕、或いは、支持体の一部の部位、例えば、唾液採取部位以外の支持体11外面(測定部位)を濡れ防止のためにコート処理、撥水処理剤などの濡れ防止手段〔図1(c)又は(d)〕を施して用いることができる。
なお、図1(a)及び(b)では、支持体11の先端から3〜12mm程には、ピンセット等で唾液口腔内に挿入しやすいように折曲部12が形成されている。
【0011】
上記濡れ防止手段としては、水不透過性の透明物質が挙げられ、例えば、ポリエチレンテレフタレート、ビスフェノールAのポリカルボネート、ポリスチレン、セルロースエステル(例、セルロースジアセテート、セルローストリアセテート、セルロースアセテートプロピオネート等)、セロファン、ポリエチレン、ポリスチレン、ポリプロピレン、ポリ塩化ビニール等の合成ポリマーで検査用具の測定部位をコートしたり、支持体をガラスや、シリコン、アクリル、ポリエチレン、ポリプロピレン、セルロースアセテート、ポリカーボネート、ナフロン、ABS樹脂、ビニール、塩化ビニール、ポリウレタン等のプラスチック性チューブで充填、被覆しても良い。
また、フッ素樹脂等で支持体表面を撥水加工し、測定部位の濡れ防止を施すことも良い。中でも、濡れ防止素材としては、柔軟且つ軽いものである、セロファン、ポリエチレン、ポリスチレン、ポリプロピレン等の合成ポリマーが好ましい。
【0012】
好ましい支持体11の原料としては、デンプン、デキストラン、ムタン、レバン、セルロース、植物繊維、合成繊維、多孔性吸着剤、濾紙、セルロースパウダー、脱脂綿、シリカゲル、石英ウールを支持体とし、また、支持体11表面を上記濡れ防止手段で加工したものが唾液の量および質に関する客観的情報を得るのに望ましいものとなる。これは、濡れた部位と乾燥部位の界面の判定のしやすさによる。
【0013】
また、支持体11の測定部位は、1mm間隔又は一定間隔で目盛り及び/又は数値を示す表示部13が表示されていることが好ましい。
更に、唾液浸透による色調変化をより視覚的に読みとりやすくするために、支持体11中にpH指示薬(酸塩基試薬)及び/又は着色料を微量加えることにより、より判定しやすくなるので好ましい。
pH指示薬としては、例えば、唾液のpH範囲を考慮して、中性から弱アルカリ性のものが好ましいが、口腔環境が著しく異なり、pHが大きく変動することもあるため、ブロモフェノールブルー(pH3.0〜4.6)、メチルオレンジ(pH3.1〜4.4)、メチルレッド(pH4.2〜6.3)、ブロムチモールブルー(pH6.0〜7.0)、フェノールレッド(pH6.8〜8.4)、チモールブルー(pH8.0〜9.6)等の使用が好ましい。
また、着色料としては、食品に用いられる添加物として、食用黄色4号、食用黄色5号、食用青食1号、食用青食2号、食用赤色2号、食用赤色3号、食用赤色102号、食用赤色104号、食用赤色105号、食用赤色106号、食用緑色3号、銅クロロフィリンナトリウム等が好ましい。
【0014】
更に、これらの素材を組み合わせた検査用具20、例えば、図1(c)に示すように、支持体21の唾液採取部位22はろ紙、測定部位23は合成繊維とし、または、図1(d)に示すように、支持体21と内径2mmの塩化ビニールチューブ24との組合せからなるものであってもよい。なお、図1(c)又は(d)中の図示番号25は、1mm間隔又は一定間隔で目盛り及び/又は数値を示す表示部である。
これらの検査用具20により、不要な唾液の検査用具の唾液採取部位20以外の部位に対する付着を防止し、目的とする唾液のみの量と質を簡便かつ正確に測定することができるものとなる。
【0015】
更にまた、支持体11を含む測定部位の厚さは、測定容易性などを考慮すれば、0.05〜5.00mm、好ましくは、0.1〜2.5mmとすることが望ましい。
本発明では、支持体11の素材によっては、極端に吸水性の悪いものもあり、唾液の場合、30秒後の浸透度が 5mm未満の支持体は、視覚判定が難しい上、唾液物性に関する情報も得にくくなり、また、30秒後の吸水速度が80mmを越えるものでは、支持体が長くなり扱いずらいので不適切とした。
【0016】
このように構成される本発明となる唾液検査用具10又は20は、唾液量や、浸透度(一定時間における唾液の浸透距離)、浸透速度(ある時間における浸透距離にさらに一定時間延長後の浸透距離の差より算出)、さらに粘性を判定できることとなる。
【0017】
粘性の判定は、本法では、唾液量が支持体11の吸収量として、10mm以上吸収される量の唾液がないと難しい。これは、粘度(η)測定が一般には一定量以上のサンプルが必要なことから、唾液の浸透度が5mm/30sec未満となる量では、粘性の判定ができないからである。
粘度測定は、本発明では下式に従い行った(A.M.Kragh:"Determination of the size and shape of protein molecules",vol.3,ed. By P.Alexander & R.J.Block,(1961))。そして、本発明では、唾液粘度を15秒後と30秒後の浸透距離の差(△値)より求めた。その結果、浸透度値と唾液粘度の間に負の相関が認められ、△値より唾液粘度が算出可能となるものと推測される。
【0018】
【数1】

Figure 0004141048
【0019】
このように構成される本発明の唾液検査用具では、口腔内の唾液の分泌量や、一定時間に於ける唾液の浸透距離となる浸透度、ある時間における浸透度に更に一定時間延長後の浸透距離により算出される浸透速度、または、粘性を所定部位に直接装着することにより判定することができると共に、新たな容器に唾液を採取する必要が無く、どこにいても、子供から高齢者に至る広範囲の被験者の唾液を簡易かつ安価に検査することができ、しかも、客観的な口腔内の情報を提供することにより、自己チェックに、また、集団検診に、更に歯科医療分野の診断に貢献することができるものとなる。
【0020】
【実施例】
次に、試験実施例により本発明を更に説明するが、本発明は下記の試験実施例に限定されるものではない。
【0021】
(試験実施例1)
下記表1に示す試作唾液検査治具(支持体)を用いて、蒸留水と各種グリセリン濃度(5%、10%)溶液に対する30秒後の浸透度を測定した。
各溶液に対する浸透度は、粘性の判定ができる浸透度とするため、浸透度が5mm/30sec以上の治具を合格(○)とし、浸透度が5mm/30sec未満の治具を不合格(×)とした。
これらの結果を下記表1に示す。
【0022】
【表1】
Figure 0004141048
【0023】
上記表1の結果から明らかなように、コピー用紙、アクとりシートを除く他の検査治具は、蒸留水、グリセリン溶液の浸透度が5mm/30sec以上を示し、唾液等の水溶性物質の浸透度測定が可能となることが判った。
【0024】
(試験実施例2)
各被験者の局所における唾液量を調べるため、開口後直ちに舌背上にクレラップコート濾紙、ワットマンNo.41濾紙、およびトーカイパウダー含有ガラスチューブ(内径1.2mm)を装着し、30秒後の唾液の浸透度(mm)を測定した。
これらの結果を下記表2に示す。
なお、クレラップコート濾紙は、東洋濾紙No.514Aをクレラップ(呉羽化学工業会社製)で脱気しコートしたものであり、ワットマンNo.41濾紙はワットマンインタ−ナショナル社製のもの、トーカイパウダー含有ガラスチューブ体は、東海加工紙社製のパウダーをガラス管に充填したものを用いた。
また、ワットマンNo.41濾紙を除き、他は、支持体の一部が防水となっている。
唾液採取部位は、ガラス管のものを除き、測定部位より手前5mmで折り曲げ、舌背上に装着した。
【0025】
【表2】
Figure 0004141048
【0026】
上記表2の結果から明らかなように、上記クレラップコート濾紙、ワットマンNo.41濾紙、トーカイパウダー含有ガラスチューブ体では、それぞれ唾液の浸透度測定が可能となることが判った。
【0027】
(試験実施例3)
各年代の被験者より安静時に分泌された全唾液約2mlを目標に採取し、その粘度と撥水処理濾紙(ワットマン No.40を3重にして、50cmの距離より0.5秒間フッ素樹脂系撥水スプレーで両サイドを処理した後の中央の濾紙)に対する浸透度を経時的に測定した。
また、唾液粘度は、R100型粘度計(東機産業社製)を用い、25℃下、1mlを用いて測定した。これらの結果を下記表3及び図2に示す。
【0028】
【表3】
Figure 0004141048
【0029】
上記表3及び図2の結果から明らかなように、20代者、50代者、70代者の唾液は、加齢により粘度が増加することが認められた。また、撥水処理濾紙に対する浸透度(mm)は、20代と50代の15秒後では差が見られなかったが、30秒後、および浸透度(△値)で加齢と共に減少した。また、両者には負の相関性が示唆された。
【0030】
【発明の効果】
本発明によれば、口腔内の唾液の分泌量や、一定時間に於ける唾液の浸透距離となる浸透度、ある時間における浸透度に更に一定時間延長後の浸透距離により算出される浸透速度、または、粘性を所定部位に直接装着することにより判定することができると共に、新たな容器に唾液を採取する必要が無く、どこにいても、子供から高齢者に至る広範囲の被験者の唾液を簡易かつ安価に見ることができ、しかも、客観的な口腔内の情報が提供されることにより、自己チェックに、また、集団検診に、更に歯科医療分野の診断に貢献することができる唾液検査用具が提供される。
【図面の簡単な説明】
【図1】(a)及び(b)は、本発明の唾液検査用具の実施形態の一例を示す概略図であり、(c)又は(d)は、それぞれ実施形態の他例を示す概略図である。
【図2】唾液粘度と浸透度値(△値)の関係を示すグラフである。
【符号の説明】
10 唾液検査用具
11 支持体
12 折曲部
13 表示部[0001]
BACKGROUND OF THE INVENTION
The present invention is a saliva that can easily and inexpensively examine the saliva of a wide range of subjects from children to the elderly for prevention of oral diseases and confirmation of the degree of influence on the salivary secretion system during drug treatment, etc. It relates to inspection tools.
[0002]
[Prior art]
In recent years, with the aging of the society, an increase in various oral diseases such as root caries, secondary caries, periodontal disease, halitosis, stomatitis, candidiasis has become a problem as problems due to aging in the oral cavity.
[0003]
As a cause of these oral diseases, some drugs taken for aging, hypertension, menopause, etc., decrease salivary secretion and induce xerostomia (dry mice). It has been suggested that a reduction in the amount induces these diseases.
Xerostomia is considered to be greatly related to changes in salivary properties in addition to the decrease in salivary secretion. In the future, in order to confirm its effects on the salivary secretion system during its prevention and drug treatment, Therefore, a method capable of simply and inexpensively inspecting the above is desired.
[0004]
Conventionally, for example, various methods (1) to (6) below have been developed as methods for easily examining risks such as caries, periodontal disease, and bad breath with saliva using a test paper.
(1) A test paper (trade name “Saribuster”, manufactured by Showa Yakuhin Kako Co., Ltd.) that grasps the oral environment by measuring pH, buffer capacity, occult blood, glucose clearance, etc. as information from saliva.
(2) A sheet-shaped RD (resazurin disc) test “Showa” (manufactured by Showa Yakuhin Kako Co., Ltd.) serving as a caries activity test paper for measuring the cariogenic bacteria count in saliva.
(3) A dent cult (manufactured by Eiko) that measures lactic acid bacteria and Streptococcus mutans in saliva.
(4) Tobacco test paper (manufactured by Toyo Roshi Kaisha, Ltd.), which is measured by a reaction with ferric chloride containing testosterone containing rhodan contained in saliva by smoking.
(5) An ion balance tester (manufactured by Sunstar) that measures pH in saliva.
(6) A halitosis checker that develops the amount of a specific component or bacterial metabolite in saliva to check the situation in the oral cavity (Japanese Patent Publication Nos. 4-23218 and 5-1858 filed by the present applicant) etc).
[0005]
In addition, as a method for examining tears and lacrimal tracts, measurement by Schirmer test paper (Ophthalmology Mook No.3 (1978), Torifumi Otori, “Tear fluid, lacrimal tract examination”) and tear volume test Measurements of phenol red thread (trade name “Zonequick”, Showa Yakuhin Kako Co., Ltd.) that can be tested even with a small amount of tears as cotton thread, as well as variations in the measurement of Schirmer test paper to grasp lacrimation and punctal atresia A Schirmer test paper with a memory (Ophthalmology 32 (697-703), 1990, Tatsuo Yamaguchi) is known.
[0006]
However, the various test papers of the above (1) to (6) and the Schirmer test paper used for the tear and lacrimal tract examination methods, such as the amount and physical properties of saliva itself, penetration, penetration speed, viscosity It does not disclose an inspection jig for simply inspecting the above.
In addition, as an objective index for viewing the oral cavity, a method of measuring the volume or weight of saliva secreted during a certain period of time is common, but it is difficult to accurately measure saliva that has a small volume and weight at medical sites. At present, there is a need for new measuring devices and the like.
[0007]
[Problems to be solved by the invention]
In view of the above-described conventional problems and current situation, the present invention intends to solve this problem, and the amount of saliva secreted in the oral cavity, the penetrance that becomes the saliva penetration distance in a certain time, and at a certain time The purpose of the present invention is to provide a saliva test tool that can determine the penetration rate calculated by the penetration distance after extending the penetration rate for a certain period of time, or by directly attaching the viscosity to a predetermined site. There is no need to collect saliva in a container, and the saliva of a wide range of subjects from children to the elderly can be examined easily and inexpensively anywhere, and by providing objective oral information An object of the present invention is to provide a saliva testing tool that can contribute to self-checking, group screening, and diagnosis in the field of dentistry.
[0008]
[Means for Solving the Problems]
As a result of intensive studies on the above-mentioned conventional problems, the present inventors have been able to easily measure each factor of saliva, etc. By using a test tool mainly composed of a specific water-absorbing support such as an adsorbent, the saliva volume and physical properties (penetration, penetration rate or viscosity) can be simply measured by measuring the saliva penetration distance after a certain period of time. Thus, the present invention has been completed by finding out that it can be predicted and can be applied to an index of risk for oral disease, xerostomia and the like.
That is, the saliva test tool of the present invention exists in the following (1) to (5).
(1) A saliva test tool inserted into the oral cavity capable of determining the amount of saliva, viscosity, dryness and wetness of the oral mucosa, and the saliva test tool has a saliva penetration rate of 5 to 80 mm / 30 sec. And a lower part of the support as a saliva collection part.
(2) The saliva test device according to (1), wherein a bent portion is formed 3 to 12 mm from the tip of the support, and a lower portion of the bent portion is used as a saliva collection site.
(3) The saliva test tool according to (1) or (2), wherein the support outer surface other than the saliva collection site of the support is provided with a wetting prevention means.
(4) The saliva test device according to any one of the above (1) to (3), wherein a scale and / or a display unit indicating a numerical value is formed on the support.
(5) The saliva test device according to any one of (1) to (4) above, wherein a trace amount of a pH indicator and / or a colorant is added to the support.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Fig.1 (a) and (b) show an example of embodiment of the saliva test | inspection tool of this invention, (c) or (d) shows the other example of embodiment, respectively.
The saliva test tool 10 of the present embodiment can determine the amount, viscosity, dryness and wetness of the oral mucosa, and the saliva test tool 10 has a saliva penetration rate of 5 to 80 mm / The support 11 is provided with a support of 30 sec, preferably 8 to 64 mm / 30 sec.
[0010]
Examples of the raw material of the support 11 used in the saliva test tool 10 of the present embodiment include paper, filter paper, blotting paper, paper towel, processed paper, absorbent cotton, quartz wool, glass wool, starch, dextran, mutan, levan, and cellulose. Examples include powder, wool, silk, cotton, hemp, etc., and supports of synthetic fibers or plant fibers such as acrylic, polyester, rayon, nylon, nitrocellulose, cellulose acetate, regenerated cellulose, glass fiber, etc., or silica gel, Examples include a support made of a porous adsorbent such as activated clay, diatomaceous earth, carbon powder, activated alumina, etc., and these can be used as they are [FIGS. 1 (a) and (b)] or a part of the support. For example, to prevent wetting of the outer surface (measurement site) of the support 11 other than the saliva collection site to prevent wetting, such as coating treatment and water repellent treatment agent Can be used by performing steps [FIG. 1 (c) or (d)].
In FIGS. 1A and 1B, a bent portion 12 is formed about 3 to 12 mm from the tip of the support 11 so as to be easily inserted into the saliva oral cavity with tweezers or the like.
[0011]
Examples of the wetting prevention means include water-impermeable transparent materials such as polyethylene terephthalate, bisphenol A polycarbonate, polystyrene, cellulose ester (eg, cellulose diacetate, cellulose triacetate, cellulose acetate propionate, etc.). ), Coating the measurement site of the inspection tool with a synthetic polymer such as cellophane, polyethylene, polystyrene, polypropylene, polyvinyl chloride, etc., and the support as glass, silicon, acrylic, polyethylene, polypropylene, cellulose acetate, polycarbonate, naflon, ABS It may be filled and covered with a plastic tube such as resin, vinyl, vinyl chloride or polyurethane.
It is also possible to prevent the measurement site from getting wet by subjecting the surface of the support to water repellent treatment with a fluororesin or the like. Among them, the wetting prevention material is preferably a synthetic polymer such as cellophane, polyethylene, polystyrene, or polypropylene, which is flexible and light.
[0012]
As a preferable raw material of the support 11, starch, dextran, mutan, levan, cellulose, vegetable fiber, synthetic fiber, porous adsorbent, filter paper, cellulose powder, absorbent cotton, silica gel, and quartz wool are used as the support. It is desirable to obtain 11 objective information on the amount and quality of saliva. This depends on the ease of determining the interface between the wet part and the dry part.
[0013]
Moreover, it is preferable that the measurement site | part of the support body 11 is displaying the display part 13 which shows a scale and / or a numerical value at a 1 mm space | interval or a fixed space | interval.
Furthermore, in order to make it easier to read the color tone change due to saliva penetration visually, it is preferable to add a minute amount of a pH indicator (acid-base reagent) and / or a colorant to the support 11 so that the determination becomes easier.
As the pH indicator, for example, neutral to weakly alkaline considering the pH range of saliva is preferable. However, since the oral environment is significantly different and the pH may fluctuate greatly, bromophenol blue (pH 3.0) To 4.6), methyl orange (pH 3.1 to 4.4), methyl red (pH 4.2 to 6.3), bromthymol blue (pH 6.0 to 7.0), phenol red (pH 6.8 to 8.4), thymol blue (pH 8.0 to 9.6) and the like are preferable.
In addition, as colorants, as food additives, food yellow No. 4, food yellow No. 5, food blue food No. 1, food blue food No. 2, food red No. 2, food red No. 2, food red No. 3, food red 102 No., edible red No. 104, edible red No. 105, edible red No. 106, edible green No. 3, copper chlorophyllin sodium and the like are preferable.
[0014]
Further, an inspection tool 20 in which these materials are combined, for example, as shown in FIG. 1 (c), the saliva collection part 22 of the support 21 is a filter paper and the measurement part 23 is a synthetic fiber, or FIG. 1 (d). As shown in FIG. 4, it may be a combination of a support 21 and a vinyl chloride tube 24 having an inner diameter of 2 mm. In addition, the number 25 shown in FIG.1 (c) or (d) is a display part which shows a scale and / or a numerical value by 1 mm space | interval or a fixed space | interval.
These inspection tools 20 can prevent unnecessary saliva from adhering to parts other than the saliva collection part 20 of the inspection tool, and can easily and accurately measure the quantity and quality of the target saliva alone.
[0015]
Furthermore, the thickness of the measurement site including the support 11 is 0.05 to 5.00 mm, preferably 0.1 to 2.5 mm in consideration of ease of measurement.
In the present invention, some materials of the support 11 have extremely poor water absorption. In the case of saliva, a support having a permeability of less than 5 mm after 30 seconds is difficult to visually determine, and information on saliva properties In addition, when the water absorption rate after 30 seconds exceeded 80 mm, the support was too long and difficult to handle, so it was inappropriate.
[0016]
The saliva test tool 10 or 20 according to the present invention configured as described above is a saliva amount, a degree of penetration (a saliva penetration distance at a certain time), a penetration speed (a penetration after a certain time extension to the penetration distance at a certain time). It is calculated from the difference in distance), and the viscosity can be further determined.
[0017]
In this method, it is difficult to determine the viscosity unless the amount of saliva is absorbed by the support 11 and there is no amount of saliva that can be absorbed by 10 mm or more. This is because viscosity (η) measurement generally requires a sample of a certain amount or more, and viscosity cannot be determined when the saliva permeability is less than 5 mm / 30 sec.
In the present invention, the viscosity was measured according to the following formula (AMKragh: “Determination of the size and shape of protein molecules”, vol. 3, ed. By P. Alexander & RJ Block, (1961)). And in this invention, saliva viscosity was calculated | required from the difference ((triangle | delta) value) of the penetration distance after 15 seconds and 30 seconds. As a result, a negative correlation is recognized between the penetration value and the saliva viscosity, and it is estimated that the saliva viscosity can be calculated from the Δ value.
[0018]
[Expression 1]
Figure 0004141048
[0019]
In the saliva testing device of the present invention configured as described above, the amount of saliva secreted in the oral cavity, the permeability that is the saliva penetration distance in a certain time, and the penetration after a certain time extension to the permeability in a certain time The penetration rate or viscosity calculated by the distance can be determined by directly attaching to a predetermined site, and it is not necessary to collect saliva in a new container. Can easily and inexpensively examine the saliva of a subject, and contribute objectively to self-checks, group screenings, and diagnosis in the dental field by providing objective oral information Will be able to.
[0020]
【Example】
Next, the present invention will be further described with reference to test examples, but the present invention is not limited to the following test examples.
[0021]
(Test Example 1)
Using a prototype saliva test jig (support) shown in Table 1 below, the penetrance after 30 seconds with respect to a solution of distilled water and various glycerin concentrations (5%, 10%) was measured.
In order to determine the permeability for each solution, a jig with a permeability of 5 mm / 30 sec or more is accepted (O) and a jig with a permeability of less than 5 mm / 30 sec is rejected (×) ).
These results are shown in Table 1 below.
[0022]
[Table 1]
Figure 0004141048
[0023]
As is apparent from the results in Table 1 above, the inspection jigs other than the copy paper and the take-up sheet have a penetrability of distilled water and glycerin solution of 5 mm / 30 sec or more, and penetrate water-soluble substances such as saliva. It was found that it was possible to measure the degree.
[0024]
(Test Example 2)
To examine the amount of saliva locally in each subject, immediately after opening, a Kurelap coat filter paper, Whatman No. 41 filter paper, and a glass tube containing Tokai powder (inner diameter 1.2 mm) were mounted on the back of the tongue, and the saliva penetration 30 seconds later The degree (mm) was measured.
These results are shown in Table 2 below.
The clerap coat filter paper is Toyo Filter Paper No. 514A was deaerated with Kurelap (manufactured by Kureha Chemical Industry Co., Ltd.) and coated. Whatman No. 41 filter paper was manufactured by Whatman International, and Tokai powder-containing glass tube body was powder manufactured by Tokai Processing Paper Co., Ltd. The one filled with a glass tube was used.
In addition, except for Whatman No. 41 filter paper, part of the support is waterproof.
The saliva collection site, except for the glass tube, was bent 5 mm in front of the measurement site and mounted on the back of the tongue.
[0025]
[Table 2]
Figure 0004141048
[0026]
As is clear from the results in Table 2 above, it was found that the Klelap coat filter paper, Whatman No. 41 filter paper, and Tokai powder-containing glass tube body can each measure saliva permeability.
[0027]
(Test Example 3)
Collect about 2 ml of total saliva secreted from the subjects of each age at rest. The viscosity and water repellent filter paper (triple Whatman No. 40, fluororesin-based repellency for 0.5 seconds from a distance of 50 cm. The permeability to the filter paper in the center after treating both sides with water spray was measured over time.
Saliva viscosity was measured using 1 ml at 25 ° C. using an R100 viscometer (manufactured by Toki Sangyo Co., Ltd.). These results are shown in Table 3 below and FIG.
[0028]
[Table 3]
Figure 0004141048
[0029]
As is clear from the results in Table 3 and FIG. 2, saliva of the 20s, 50s, and 70s increased in viscosity with aging. In addition, the permeability (mm) to the water-repellent treated filter paper showed no difference after 15 seconds between the 20s and 50s, but decreased with aging after 30 seconds and the penetration (Δ value). Moreover, a negative correlation was suggested between the two.
[0030]
【The invention's effect】
According to the present invention, the amount of saliva secreted in the oral cavity, the permeability that is the saliva penetration distance at a certain time, the penetration rate that is calculated by the penetration distance after a certain time extension to the permeability at a certain time, Alternatively, the viscosity can be determined by directly attaching to a predetermined site, and it is not necessary to collect saliva in a new container, and the saliva of a wide range of subjects from children to elderly people can be easily and inexpensively anywhere In addition, by providing objective intraoral information, a saliva test device is provided that can contribute to self-checks, mass screening, and further diagnosis in the dental field. The
[Brief description of the drawings]
FIGS. 1A and 1B are schematic views showing an example of an embodiment of a saliva test device of the present invention, and FIGS. 1C and 1D are schematic views showing other examples of the embodiment, respectively. It is.
FIG. 2 is a graph showing the relationship between saliva viscosity and penetration value (Δ value).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Saliva test | inspection tool 11 Support body 12 Bending part 13 Display part

Claims (5)

唾液の量、粘性、口腔粘膜の乾燥度及び湿潤度を判定することができる口腔内に挿入する唾液検査用具であって、該唾液検査用具は唾液の浸透速度が5〜80mm/30secの支持体を備えると共に、該支持体の下部を唾液採取部位としてなることを特徴とする唾液検査用具。  A saliva test tool inserted into the oral cavity capable of determining the amount of saliva, viscosity, dryness and wetness of the oral mucosa, the saliva test tool having a support with a saliva penetration rate of 5 to 80 mm / 30 sec And a lower part of the support as a saliva collection part. 支持体の先端から3〜12mmには折曲部が形成されて該折曲部の下部を唾液採取部位としてなる請求項1記載の唾液検査用具。  The saliva examination tool according to claim 1, wherein a bent portion is formed 3 to 12 mm from the tip of the support, and a lower portion of the bent portion is used as a saliva collection site. 支持体の唾液採取部位以外の支持体外面に濡れ防止手段を施してなる請求項1又は2記載の唾液検査用具。  The saliva test tool according to claim 1 or 2, wherein a wet prevention means is applied to the outer surface of the support other than the saliva collection site of the support. 支持体に、目盛及び/又は数値を示す表示部が形成されている請求項1〜3の何れか一つに記載の唾液検査用具。  The saliva test device according to any one of claims 1 to 3, wherein a display unit indicating a scale and / or a numerical value is formed on the support. 支持体中に、pH指示薬及び/又は着色料を微量加えてなる請求項1〜4の何れか一つに記載の唾液検査用具。  The saliva test device according to any one of claims 1 to 4, wherein a trace amount of a pH indicator and / or a colorant is added to the support.
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