Available at: http://rjpharmacognosy.ir Copy right© 2014 by the
Iranian Society of Pharmacognosy *Corresponding author: s.fahimi@sbmu.ac.ir,
fahimishirin@yahoo.com, Tel/Fax:
+9821-88773521
Research Journal of Pharmacognosy (RJP) 2(2), 2015: 61-66
Received: Jan 2015
Accepted: Feb 2015
Review article
Anti-halitosis
plants in Iranian Traditional Medicine
Sh. Fahimi1*, M. Naseri2
1Traditional Medicine and Materia
Medica Research Center and Department of Traditional Pharmacy, School of
Traditional Medicine, Shahid Beheshti University of Medical Sciences, Tehran,
Iran.
2Iranian Traditional Medicine Clinical
Trial Research Center, Shahed University, Tehran, Iran.
Abstract
Halitosis is
an oral health condition characterized by unpleasant odors emanating constantly
from oral cavity. Almost 22-50% of the population experiences such a condition
during lifespan and about half of them suffer from personal discomfort and
social embarrassment. Based on the literature survey, it seems that the oral
cavity is the most important origin of halitosis; therefore, this area could be
considered as the best target for the treatment. Halitosis is a well-known
disorder in Iranian Traditional Medicine (ITM); Avicenna and some other famous
Iranian traditional physicians have described this condition in their
manuscripts precisely. Herbal therapy was the major treatment suggested by
Iranian scholars in which mixtures of medicinal plants were used in the form of
mouthwashes and other oral formulations. In the present study, six Iranian
ancient medical texts were screened for the herbs with anti-halitosis effects.
Subsequent to this study, the medicinal herbs were listed and scored based on
the frequency of their repetition. Moreover, the effort has been taken to
provide the best scientific name for each plant as well as searching modern
studies about their biological effects. In our investigation fourteen plants
were obtained as the most frequent herbs for treatment of halitosis in ITM.
Previous studies revealed that some of these plants have shown biological
activities relating to anti-halitosis effect. The present study introduces some
more plants for future studies about anti-halitosis property.
Keywords: halitosis, herbal medicine, Iranian
Traditional Medicine, oral malodor
Introduction
Halitosis is
an unpleasant or offensive odor emanating from the oral cavity regardless of
its origin. It is common in people of all ages with the prevalence of 22% to
more than 50% [1-3]. It is an important factor in social communication which
may lead to social and personal isolation. At least 50% of the population
suffer from chronic oral malodor and approximately half of these individuals
experience a severe problem that creates personal discomfort and social
embarrassment [2,3]. Halitosis is a multifactorial disorder. The source of oral
malodor is located in the oral cavity in up to 90% of people with the condition
and only a small percentage of cases may be due to non-oral causes. A serious underlying
medical condition may warrant immediate referral to a physician [2]. The most
likely cause of oral malodor is the accumulation Fahimi Sh. and Naseri M.
62 RJP 2(2),
2015: 61-66
of food debris and dental bacterial plaque on the teeth and
tongue, resulting from poor oral hygiene and resultant gingival and periodontal
inflammation. Decreased salivary flow rate, disturbances of the upper and lower
respiratory tract, disorders of gastrointestinal tract, some of systemic
diseases, metabolic disorders, medications and carcinoma could be considered as
the other causes of halitosis [1-3]. Helicobacter pylori infection has
been suggested to cause a subjective change in oral odor [3]. The oral
microorganisms most likely to cause oral malodor are Gram-negative bacteria,
however, no obvious association exists between oral malodor and any specific
bacterial infection, suggesting that halitosis reflects complex interactions
between several oral bacterial species. Volatile sulfide compounds (VSC) are
the principal components of bad breath resulting from the proteolytic
degradation of various sulfur-containing substrates in food debris, saliva,
blood, and epithelial cells by predominantly anaerobic Gram negative oral
microorganisms [2,3]. At present, there are three methods for measuring
halitosis: organoleptic measurement, gas chromatography and sulfide monitoring
[2]. Due to the fact that the majority of breath malodor cases originate from
the oral cavity, the treatment of oral malodor can therefore be focused on the
reduction of the intraoral bacterial load and/or the conversion of VSC to
nonvolatile substrates [2]. Toothpastes and mouthrinses with chemical
ingredients such as chlorhexidine (CHX), triclosan and cetylpyridinium chloride
(CPC) or essential oils can reduce oral malodor by decreasing either the number
of microorganisms or by chemically neutralizing odor compounds, including VSCs
[1,2] . Botanical extracts have demonstrated to be active against halitosis. In
addition to antimicrobial efficacy in these plant extracts, their aromatic
effects are appreciable for bad breath neutralization and flavoring the
treatment products as well [4].
Nowadays, many
of drugs with natural sources have been retrieved from traditional medical
systems. In Iranian Traditional Medicine (ITM), plants have been used to combat
various diseases and pathological conditions. Halitosis is a well-known
disorder in ITM. "Bakhar ul-fam" was the term used for oral malodor
by Iranian physicians and the traditional definition of halitosis is similar to
its conventional description. Etiology of halitosis has been mentioned in ITM
manuscripts precisely indicating the similarity between conventional and
traditional beliefs in this context. According to ITM references, gingivitis,
the fragile gum, root infection which leads to tooth damage, hot and non humid
intemparement of the gums, accumulation of rotten bilious or phlegmatic humor
in the cardia of the stomach, lung infection such as tuberculosis and falling
of rotten humidity from head to the gums, are the most important factors
involved in oral malodor [5-7]. So, tooth cleaning, removing the infection,
evacuation and cupping (in the case of phlegmatic humor) were considered as the
main therapeutic approaches for halitosis as well as herbal therapy in ITM.
Combinational prescriptions including several herbal plants in the form of
mouthwash, tooth powder, mucoadhesive , chewable and oral dosage forms were
applied by Iranian scholars for treatment of halitosis [5,7].
Due to the
prevalence of halitosis, finding new and safe remedies for oral malodor is
favorable. The aim of the present study was to introduce the most frequent
medicinal plants used in ITM for treatment of halitosis.
Methods
Six ITM texts
including al-Qanun fi al -Tibb (Avicenna) [5], Al Havi (Rhazes)
[8], Al-abniah An Haghayegh el-adviah (Heravi) [9],
Ekhtiarat-e-Badiee (Ansari) [10], Tohfat-ul-momenin (Mo,men tonekaboni) [11] and Makhzan-ul- Adviah (Aghili Shirazi)
[12] were studied. The traditional word of “bakhar ul fam” was considered as
the search term for extracting the plants with healing effect on oral malodor.
First al-Qanun fi al –Tibb, the main text of ITM, was screened using the
key word and the anti-halitosis Anti-halitosis plants in Iranian Traditional Medicine
63
property of the selected plants has
been checked in the rest of ITM texts to find the most frequently used plants.
In addition to the used part, the temperament of the plants has been studied.
Afterwards, traditional names of the selected plants were matched to scientific
names using botanical text books [13-15]. On the next step, a substantial
search has been performed in scientific databases such as ‘‘Google Scholar’’
and ‘‘pubmed’’ to find the anti-halitosis or biological activities of the
plants corresponding to oral malodor. For this purpose, "halitosis"
and "oral malodor" in combination with the scientific plant names
were used as the keywords.
Results
and Discussion
Searching
ITM references revealed fourteen plants as the most frequently used herbs for
halitosis which have been listed in table 1 and ordered according to their
repetition in the references along with their scientific name, family,
temperament and used part. The plant parts used for halitosis consisted of oleo
gum resins, leaves, barks, fruits, peels, roots and woods while leaves appeared
to be the most used parts. According to table 1, most of the herbs have hot and
dry temperament (>92%) while dryness is the prominent characteristic of all
anti halitosis plants introduced by Iranian scholars. In addition to the
summarized results in table 1, the plants which have shown anti-halitosis or
biological activities related to oral malodor in modern researches, have been
discussed as follow:
Commiphora
myrrha (Nees) Engl.
In an in
vitro study, a toothpaste with natural extracts ingredients including C.
myrrha demonstrated to be effective against Gram-positive bacteria and
yeasts. Moreover, the product was able to inhibit the growth of Pseudomonas
aeruginosa [16]. It has been found that mouthwashes containing hydroalcohol
extract of Yemeni myrrh (oleo-gum-resin obtained from the stem of C. myrrha)
have exhibited antimicrobial activity against common pathogens of the oral
cavity [17].
Symplocos
racemosa Roxb.
Oral
rinses and toothpaste manufacturers have incorporated plant-derived
antimicrobials into their formulations; In India, HiOra, has been formulated
which contains extracts of Symplocos racemosa, Vitis vinifera, Cinnamomum
zeylanicum and Carica papaya [18].
Syzygium
aromaticum (L.)
Merr. & L.M.Perry
Caryophilli
Flos (Syzygium aromaticum) has demonstrated the ability to inhibit
malodor in vitro using malodor modeling of the salivary sediment system;
the results have shown that the plant significantly reduced VSC, organoleptic
odor and indole/skatole formation (p<0 .05="" i="" shi="">et al. 0>
(2003)
have developed compositions of herbs and methods of using these compositions
for the treatment and prevention of microbial infections, especially for dental
caries or periodontal diseases. The composition consisted of mixture of two or
more herbs such as S. aromaticum and medicinal rhubarb root. Evaluation
of the herbal formula using human cell lines and Ame’s DNA mutagenesis tests
have confirmed the safety of the formula [20]. It has been revealed that the
methanol extract of S. aromaticum is able to inhibit of S. aureus, S.
pyogenes, Providencia sp., P. mirabilis, S. sonnei, S. typhi and S.
typhimurium. Moreover, volatile components of the plant have been found to
possess antibacterial activities [21]. Rosas-Piñón et al. (2012) have
shown that water extract of S. aromaticum (10.5–78.0 μg/mL) had high
inhibitory effect against Streptococcus mutans and Porphyromonas
gingivalis [22].
Myristica
fragrans Houtt.
Chung
J.Y. et al. (2006) have demonstrated that the extract of Myristica
fragrans, possessed strong inhibitory activity against S. mutans (MIC
3.9 μg/mL). Moreover, they have revealed that Macelignan (nutmeg extract) has
preferential activity against other oral microorganisms such as Streptococcus
sobrinus, S. salivarius, S. sanguis, Lactobacillus acidophilus and L.
casei with the MIC range of 2–31.3 μg/mL [23].Fahimi Sh. and Naseri M.
64 RJP
2(2), 2015: 61-66
Table
1. The most
frequent herbs in ITM for halitosis Used
part
|
Temperament
|
Family
|
Scientific name
|
Phonetics
|
Traditional name
|
No.
|
|
Yellow Peel
|
Hot and dry
|
Rutaceae
|
Citrus medica L.
|
/otrodʒ/
|
Otroj
|
1
|
|
Root
|
Hot and dry
|
Cyperaceae
|
Cyperus longus L.
|
/soʊʔd/
|
Soed
|
2
|
|
Oleogum resin
|
Hot and dry
|
Burseraceae
|
Commiphora myrrha (Nees) Engl.
|
/moʊr/
|
Morr
|
3
|
|
Leaves
|
Hot and dry
|
Boraginaceae
|
Asperugo procumbens
L.
|
/bɑ:drændʒbu:je/
|
Badranjbooye
|
4
|
|
Lamiaceae
|
Melissa officinalis
L.
|
||||||
Bark
|
Hot and dry
|
Symplocaceae
|
Symplocos racemosa Roxb.
|
/ærmɑ:l/
|
Armal
|
5
|
|
Root
|
Hot and dry
|
Zingiberaceae
|
Alpinia officinarum
Hance
|
/xuːlænʤɒːn/
|
Khoolanjan
|
6
|
|
Leaves
|
Hot and dry
|
Lauraceae
|
Cinnamomum
citriodorum Thwaites
|
/sɑ:zeʤ/
|
Sazej
|
7
|
|
Whole part
|
Hot and dry
|
Apiaceae
|
Apium graveolens L.
|
/kæræfs/
|
Karafs
|
8
|
|
Fruit
|
Hot and dry
|
Myrtaceae
|
Syzygium aromaticum
(L.) Merr. & L.M.Perry
|
/ɢærænfol/
|
Qaranfol
|
9
|
|
Fruit
|
Hot and dry
|
Myristicaceae
|
Myristica fragrans Houtt.
|
/ʤoʊzebævɑ:/
|
Jos e bavva
|
10
|
|
Leaves
|
Hot and dry
|
Piperaceae
|
Piper betle L.
|
/tænbu:l/
|
Tanbool
|
11
|
|
Wood
|
Hot and dry
|
Thymelaeaceae
|
Aquilaria sinensis (Lour.) Spreng.
|
/u:d/
|
ood
|
12
|
|
Fruit
|
Cold and dry
|
Arecaceae
|
Areca catechu L.
|
/fu:fel/
|
Foofel
|
13
|
|
Leaves
|
Hot and dry
|
Rutaceae
|
Ruta graveolens L.
|
/sodɑ:b/
|
Sodab
|
14
|
|