Exhibit 10.5

STOCK PURCHASE AGREEMENT

THIS STOCK PURCHASE AGREEMENT (the “Agreement”) is made and entered into as of
the 17th day of January, 2012, by and between the persons and entities listed on
the signature page hereof and on Exhibit A (collectively, the “Sellers”) who are
the record or beneficial owners of shares of capital stock of Discount Dental
Materials, Inc. (the “Company”) in the amounts listed on Exhibit A, and Cerebain
Biotech Corp., a Nevada corporation (the “Buyer”).

W I T N E S S E T H:

WHEREAS, the Sellers desire to sell to Buyer Three Million Eight Hundred
Thousand (3,800,000) shares of common stock of the Company, $0.001 par value per
share, restricted in accordance with Rule 144,  (the “Shares”), and the Buyer
desires to purchase from the Sellers the Shares upon the terms and conditions
hereinafter set forth.

NOW, THEREFORE, in consideration of the mutual covenants and agreements
contained herein, the parties hereto, intending to be legally bound, agree as
follows:

1.

Sale and Transfer of the Shares. At the Closing (as hereinafter defined) and
subject to the terms and conditions of this Agreement, the Sellers shall sell,
convey and deliver to the Buyer, and the Buyer shall purchase and accept from
the Sellers, the Shares for the purchase price specified in Section 2 below.  By
signing below the Sellers agree to appoint Gary B. Wolff as the “Seller’s
Representative” for the purposes of closing the transaction described herein,
accepting the purchase price paid by the Buyer for the Shares and executing any
further documents necessary to consummate the transactions described herein.

2.

Purchase Price. In exchange for the Shares, at Closing the Buyer shall pay
$296,000 to Gary B. Wolff, as Sellers’ Representative.

3.

Closing. The Closing of the transaction described in this Agreement shall take
place on such date as mutually determined by the parties hereto (the “Closing”),
which Closing is expected to be on or before February 9, 2012, unless extended
by mutual consent of the parties hereto. At the Closing, the Sellers shall
deliver to the Buyer one or more stock certificates representing the Shares to
be transferred hereunder together with a medallion-guaranteed stock power
sufficient to transfer the Shares from the Sellers to the Buyer.  The Closing
will be coordinated with the closing of the transactions contemplated by that
certain Share Exchange Agreement by and between DDOO, Douglas Barton, Buyer and
certain shareholders of Buyer dated of even date hereof, as well as the closing
of the transactions contemplated by that certain Spinoff Agreement by and
between DDOO and Douglas Barton dated of even date hereof, and it is the intent
of the parties that the transactions contemplated by all three agreements close
simultaneously. By signing below the Sellers give their consent to DDOO and its
Board of Directors to sell all DDOO’s current assets and liabilities to Douglas
Barton pursuant to the Spinoff Agreement reference herein.

4.

Representation and Warranties of the Seller. The Sellers represent and warrant
that:

(a)

Authority. The Sellers have all necessary power and authority to execute,
deliver and perform this Agreement and to consummate the transactions provided
for herein. This Agreement has been duly authorized, executed and delivered by
the Sellers and constitutes a valid and binding obligation of the Sellers
enforceable in accordance with its terms. The execution, delivery and
performance of this Agreement by the Sellers does not and will not violate any
provision of any law, regulation or order, or conflict with or result in the
breach of, or constitute a default under, any material agreement or instrument
to which the Sellers are a party or by which the Sellers may be bound or
affected.

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(b)

Title. The Sellers have good and marketable title to all of the Shares being
sold by him to the Buyer pursuant to this Agreement.  The Shares will be, at the
Closing, free and clear of all liens, security interests, pledges, charges,
claims, encumbrances and restrictions of any kind, except for restrictions on
transfer imposed by federal and state securities laws.  None of the Shares are
or will be subject to any voting trust or agreement.  No person holds or has the
right to receive any proxy or similar instrument with respect to such Shares.
 Except as provided in this Agreement, the Sellers are not a party to any
agreement which offers or grants to any person the right to purchase or acquire
any of the Shares.  There is no applicable local, state or federal law, rule,
regulation, or decree which would, as a result of the purchase of the Shares by
Buyer (and/or assigns) impair, restrict or delay voting rights with respect to
the Shares.

(c)

Affiliate Status.  Some of the Sellers are affiliates of the Company or its
predecessor(s); as such term is defined in the Securities Act of 1933, as
amended (the “Securities Act”).

(d)

Restricted Securities. The Sellers hereby represent and warrant to the Buyer
that the Shares are “restricted securities” within the meaning of Rule 144 of
the Securities Act and may not be sold, pledged, or otherwise disposed of by the
Buyer without restriction under the Securities Act and applicable state
securities laws.

(e)

Capital.  Immediately prior to the Closing the Shares will represent
approximately 37.25% of the Company’s outstanding common stock.

(f)

Duly Endorsed. Sellers hereby represent and warrant to the Buyer that
certificates representing the Shares will be duly endorsed upon their transfer
to the Buyer, which endorsement will contain a medallion-guaranteed stock power
sufficient for the transfer agent to transfer the Shares to the Buyer.

(g)

Transfer of Shares.  The Sellers agree to supply all necessary paperwork,
including the share certificates representing the Shares and
medallion-guaranteed stock powers, or other sufficient transfer authorization,
to transfer the Shares into the Buyer’s at the Closing.  

(h)

Representations.  All representations shall be true as of the Closing and all
such representations shall survive the Closing.

5.

Representation and Warranties of the Buyer. The Buyer represents and warrants
that:

(a)

Authority.  The Buyer has all necessary power and authority to execute, deliver
and perform this Agreement and to consummate the transactions provided for
herein.  This Agreement has been duly executed and delivered by the Buyer and
constitutes a valid and binding obligation of the Buyer enforceable in
accordance with its terms.  The execution, delivery and performance of this
Agreement by the Buyer does not and will not violate any provision of any law,
regulation or order, or result in the breach of, or constitute a default under,
any material agreement or instrument to which any Buyer is a party or by which
any Buyer may be bound or affected.

(b)

No Solicitation.  The Buyer’s purchase of the Shares hereunder has not been
solicited by means of general solicitation or by advertisement.

6.

Entire Agreement. This Agreement constitutes the complete understanding between
the parties hereto with respect to the subject matter hereof, and no alteration,
amendment or modification of any of the terms and provisions hereof shall be
valid unless made pursuant to an instrument in writing signed by each party.
 This Agreement supersedes and terminates any and all prior agreements or
understandings between the parties regarding the subject matter hereof.

7.

Fees and Costs. The Sellers and the Buyer shall each bear their own fees and
costs incurred in connection with this Agreement.

8.

Binding Effect. This Agreement shall be binding upon and inure to the benefit of
the parties hereto and their respective heirs, personal representatives,
executors, successors and assigns.

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9.

Governing Law. This Agreement has been made in and shall be construed and
enforced in accordance with the laws of the State of California.

10.

Survival of Representations and Warranties. All representations and warranties
made by the Sellers and the Buyer shall survive the Closing.

11.

Jurisdiction and Venue. Any claim or controversy arising out of or relating to
the interpretation, application or enforcement of any provision of this
Agreement, shall be submitted for resolution to a court of competent
jurisdiction in California.  The parties hereby consent to personal jurisdiction
and venue in Orange County, California.

12.

Construction and Severability. In the event any provision in this Agreement
shall, for any reason, be held to be invalid or unenforceable, this Agreement
shall be construed as though it did not contain such invalid or unenforceable
provision, and the rights and obligations of the parties hereto shall continue
in full force and effect and shall be construed and enforced in accordance with
the remaining provisions hereof.

13.

Counterparts. This Agreement may be executed in one or more counterparts, each
of which shall be deemed an original, but all of which together shall constitute
one and the same instrument.

14.

Paragraph Headings.  The paragraph headings contained in this Agreement are for
convenience only and shall not affect in any manner the meaning or
interpretation of this Agreement.

15.

Rule of Construction Relating to Ambiguities. All parties to this Agreement
acknowledge that they have each carefully read and reviewed this Agreement with
their respective counsel and/or other representative, and therefore, agree that
the rule of construction that ambiguities shall be construed against the drafter
of the document shall not be applicable.

[Signature Pages Follow]

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IN WITNESS WHEREOF, the parties hereto have duly executed this Agreement as of
the day and year first above written.

SELLERS:

Dated: ____________________

/s/ Douglas Barton________________________

Douglas Barton

Dated: ____________________

/s/ Keith Barton__________________________

Keith Barton

 

Dated: ____________________

/s/ Michelle Barton__________________________

Michelle Barton

Dated: ____________________

/s/ Craig Barton____________________________

Craig Barton

Dated: ____________________

/s/ Patricia Barton__________________________

Patricia Barton

Dated: ____________________

/s/ Steven Barton____________________________

Steven Barton

 

Dated: ____________________

/s/ Claire Heil______________________________

Claire Hei

Dated: ____________________

/s/ Claire Hughes___________________________

Claire Hughes

Dated: ____________________

/s/ Dennis Hughes___________________________

Dennis Hughes

Dated: ____________________

/s/ Patricia Skarpa__________________________

Patricia Skarpa

 

Dated: ____________________

/s/ Hallie Beth Skarpa_______________________

Hallie Beth Skarpa

PE Group, Inc.

Dated: ____________________

/s/ Edward Heil_____________________________

By:

Its:  Managing Director

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 [SIGNATURE PAGE TO STOCK PURCHASE AGREEMENT]

Buyer: Cerebain Biotech Corp.

a Nevada corporation

/s/ Gerald A. DeCiccio                                               

By: Gerald A. DeCiccio

Its:  President

 

92 Corporate Park, C-141                                           

Address

Irvine, CA  92606                                                        

City, State and Zip Code

SSN or TIN:  27-2374588                                            

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Exhibit A

DDOO Selling Shareholders

DDOO Selling Shareholder

No. of DDOO Shares

 

 

Douglas Barton

3,000,000

Keith Barton

200,000

Michelle Barton

200,000

Craig Barton

60,000

Patricia Barton

200,000

Steven Barton

100,000

Claire Heil

10,000

Claire Hughes

5,000

Dennis Hughes

5,000

PE Group, Inc.

5,000

Patricia Skarpa

10,000

Hallie Beth Skarpa

5,000

Total:

3,800,000

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